| Vol-2267 urn:nbn:de:0074-2267-5 Copyright © 2018 for the individual papers by the papers' authors. Copying permitted for private and academic purposes. This volume is published and copyrighted by its editors.

# GRID 2018
International Conference "Distributed Computing and Grid-technologies in Science and Education" 2018

### Selected Papers of the 8th International Conference "Distributed Computing and Grid-technologies in Science and Education"

### Dubna, Russia, September 10-14, 2018.

Edited by

### Vladimir Korenkov *
Andrey Nechaevskiy *
Tatiana Zaikina *
Elena Mazhitova *

* Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia

Working languages of the GRID-2018 Conference are Russian and English so some of the papers (10%) are in Russian.
Abstracts in English are provided for papers and are placed on the last pages of the papers.

## Table of Contents

- Preface
- Committees

### Plenary Reports

- The CMS Tier1 at JINR: five years of operations 1-10
  Andrey Baginyan, Anton Balandin, Sergey Belov, Andrey Dolbilov, Alexey Golunov, Natalia Gromova, Ivan Kadochnikov, Ivan Kashunin, Vladimir Korenkov, Valery Mitsyn, Igor Pelevanyuk, Sergei Shmatov, Tatiana Strizh, Vladimir Trofimov, Nikolay Voytishin, Victor Zhiltsov
- CRIC: the information system for LHC distributed computing 11-17
  Alexey V. Anisenkov
- The ATLAS EventIndex and its evolution based on Apache Kudu storage 18-25
  Dario Barberis, Fedor Prokoshin, Evgeny Alexandrov, Igor Alexandrov, Zbigniew Baranowski, Luca Canali, Gancho Dimitrov, Alvaro Fernandez Casani, Elizabeth Gallas, Carlos Garcia Montoro, Santiago Gonzalez de la Hoz, Julius Hrivnac, Aleksandr Iakovlev, Andrei Kazymov, Mikhail Mineev, Grigori Rybkin, Javier Sanchez, José Salt Cairols, Petya Vasileva, Miguel Villaplana Perez
- Big Data as the future of information technology 26-31
  Alexander Bogdanov, Alexander Degtyarev, Vladimir Korkhov, Thurein Kyaw Lwin, Nadezhda Shchegoleva
- The designing of cloud infrastructure consisting of geographically distributed data centers 32-36
  Petr V. Fedchenkov, Sergey E. Khoruzhnikov, Nikita Y. Samokhin, Andrey Y. Shevel
- Multicomponent cluster management system for the computing center at IHEP 37-43
  Victoria Ezhova, Anna Kotliar, Viktor Kotliar, Ekaterina Popova
- Масштабное моделирование – алгоритм параллельного отжига
  (Large scale simulations with parallel annealing algorithm) 44-51
  Lev N. Shchur, Liudmila V. Shchur
- RUNNet: infrastructural and service basis of the national research and education network of the Russian Federation 52-57
  Alexey G. Abramov, Anton V. Evseev
- Virtual testbed as a case for Big Data 58-64
  Alexandr B. Degtyarev, Alexander V. Bogdanov, Vladimir V. Korkhov, Ivan G. Gankevich, Yury V. Pylnev, Anatoly V. Eibozhenko

### Sectional Reports

- ALICE DCS preparation for Run 3 65-69
  André Augustinus, Peter Matthew Bond, Peter Chochula, Alexander Kurepin, John Larry Lang, Mateusz Lechman, Ombretta Pinazza, Kevin Cifuentes Salas
- Properties of the parallel discrete event simulation algorithms on small-world communication networks 70-75
  Liliia Ziganurova, Lev Shchur
- Грид и облачная инфраструктура дата-центра института физики НАН Азербайджана
  (Grid and cloud infrastructure of the data center institute of physics NAS of Azerbaijan) 76-80
  Aleksey S. Bondyakov
- The ATLAS BigPanDA monitoring system architecture 81-85
  Tatiana Korchuganova, Siarhei Padolski, Torre Wenaus, Alexei Klimentov, Aleksandr Alekseev
- The BigPanDA self-monitoring alarm system for ATLAS 86-90
  Aleksandr Alekseev, Tatiana Korchuganova, Siarhei Padolski
- BigData tools for the monitoring of the ATLAS EventIndex 91-94
  Evgeny Alexandrov, Andrei Kazymov, Fedor Prokoshin
- The dependence of sites speed factor from the declared HS06 95-98
  Victoria Matskovskaya, Andrea Sciabà
- Search for anomalies in the computational jobs of the ATLAS experiment with the application of visual analytics 99-103
  Maria Grigorieva, Aleksandr Alekseev, Timofei Galkin, Tatiana Korchuganova, Igal Milman, Victor Pilyugin, Mikhail Titov
- Trigger information data flow for the ATLAS EventIndex 104-107
  Mikhail Mineev, Fedor Prokoshin, Alexander Yakovlev
- Разработка перспективной системы сбора данных на основе TRB-3
  (Developing prospective data collection system based on the TRB-3) 108-113
  Andrey Kondratyev, Nikolay Kurepin, Alexander Kurepin, Konstantin Skazytkin
- Интеллектуальный когнитивный роботренажер для сквозных ИТ на основе глубокого машинного обучения
  (Intelligent cognitive robo-equipment for end-to-end IT based on deep machine learning) 114-117
  Olga V. Ivanсova, Olga Y. Tyatyushkina, Sergey V. Ulyanov
- Development tools of complex technological objects computer-aided simulation environments 119-123
  Mikhail Yu. Orekhov, Dmitrii V. Kalinin, Alexander V. Matrosov
- The atlas production system predictive analytics service: an approach for intelligent task analysis 124-128
  Mikhail A. Titov, Mikhail S. Borodin, Dmitry V. Golubkov, Alexei A. Klimentov
- Creating tools to assist in development of CMS software 129-133
  George Adamov
- Current workflow execution using job scheduling for the NICA experiments 134-138
  Konstantin V. Gertsenberger, Oleg V. Rogachevsky
- COMPASS production system: processing on HPC 139-144
  Artem Sh. Petrosyan
- Experience with ITEP-FRRC HPC facility 145-149
  Ivan E. Korolko, Mikhail S. Prokudin and Victor A. Kolosov
- New methods of minimizing the errors in the software 150-154
  Elizaveta A. Dorenskaya, Yuri A. Semenov.
- Event building from free streaming data at the CBM 155-159
  Mikhail S. Prokudin, Ivan E. Korolko
- On the subject of assessing the composition of IT services enterprise information systems via fuzzy sets theory 160-165
  Alexandr B. Degtyarev, Gennady D. Dick, Alexander G. Dick
- .NET Core technology in scientific tasks 166-169
  Victor A. Dorokhin
- Molecular dynamic simulation of water vapor interaction with various types of pores using hybrid computing structures 170-174
  Vladimir V. Korenkov, Eduard.G. Nikonov, Maria. Popovičová
- Using extended reality technologies in distributed computer systems 175-178
  Nadezhda O. Vozdvizhenskaya
- Разработка децентрализованной платежной системы на основе технологии blockchain с учетом специфики мобильных платформ
  (Development of blockchain based decentralized payment system according to mobile platform specifics) 179-184
  Andrey A. Ilukhin, Eduard G. Nikonov
- Modern e-Infrastructure for science and education in Moldova, based on the renam-geant platform 185-189
  Peter Bogatencov, Grigore Secrieru, Nichita Degteariov, Nicolai Iluha
- Проблема интероперабельности при реализации четвертой парадигмы
  (The interoperability problem during the implementation of the fourth paradigm) 190-194
  Andrey A. Kamenshchikov, Alexander Y. Oleynikov
- NRV web knowledge base: scientific and educational applications 195-199
  Alexander V. Karpov, Andrey S. Denikin, Viacheslav V. Samarin, Mikhail A. Naumenko, Alexander P. Alekseev, Vladimir A. Rachkov, Viacheslav V. Saiko, Leslie М. Lekala, Bahati Mukeru.
- Architecture and basic principles of the multifunctional platform for plant disease detection 200-206
  Pavel Goncharov, Gennady Ososkov, Andrey Nechaevskiy, Alexander Uzhinskiy
- Essential aspects of IT training technology for processing, storage and data mining using the virtual computer lab 207-212
  Mikhail A. Belov, Yury A. Krukov, Maksim A. Mikheev, Pavel E. Lupanov, Nadezhda A. Tokareva, Evgeniya N. Cheremisina
- Scalable semantic virtual machine framework for language-agnostic static analysis 213-217
  Maxim Menshchikov
- Usage of the distributed computing system in the recovery of the spectral density of sea waves 218-222
  Ilya Busko
- Approaches to the automated deployment of the cloud infrastructure of geographically distributed data centers 223-227
  Petr V. Fedchenkov, Nikita Y. Samokhin, Sergey E. Khoruzhnikov, Oleg I. Lazo, Andrey Y. Shevel
- About some of the blockchain problems 228-232
  Alexander V. Bodganov, Alexander B. Degtyarev, Vladimir V. Korkhov, Magdalyne Kamande, Oleg O. Iakushkin
- Design and implementation of a service for performing HPC computations in cloud environment 233-236
  Ruslan I. Kuchumov, Vladimir V. Korkhov
- Creation of cloud infrastructure of INP's Astana branch - private entity «NULITS» and its integration with the distributed JINR cloud infrastructure 237-242
  Sergey I. Belov, Yelena M. Mazhitova, Mikhail I. Mazhitov, Boris G. Potapchuk
- Improving the load of supercomputers based on job migration using container virtualization 243-247
  Stanislav P. Polyakov, Yulia Yu. Dubenskaya
- Clouds of JINR, University of Sofia and INRNE — current state of the project 248-251
  Vladimir Korenkov, Nikita Balashov, Nikolay Kutovskiy, Vladimir Dimitrov, Kouzma Kouzmov, Radoslava Hristova, Svetoslav Hristov
- Эксперименты с JupyterHub в Санкт-Петербургском государственном университете
  (Experiments with JupyterHub at the Saint Petersburg state university) 252-256
  Andrey Erokhin, Andrey Zarochentsev
- New features of the JINR cloud 257-261
  Alexandr V. Baranov, Nikita A. Balashov, Alexandr N. Makhalkin, Yelena M. Mazhitova, Nikolay A. Kutovskiy, Roman N. Semenov
- Kubernetes testbed cluster for the lightweight sites project 262-265
  Iuliia Gavrilenko, Mayank Sharma, Maarten Litmaath
- Supporting efficient execution of many-task applications with Everest 266-270
  Oleg V. Sukhoroslov
- Implementing computations with dynamic task dependencies in the desktop grid environment using everest and templet web 271-275
  Sergei V. Vostokin, Oleg V. Sukhoroslov, Irina V. Bobyleva, Stefan N. Popov
- The game character of collaboration in volunteer computing community 276-281
  Victor Tishchenko
- Orthogonality-based classification of diagonal latin squares of order 10 282-287
  Eduard Vatutin, Vitaly Titov, Oleg Zaikin, Stepan Kochemazov, Maxim Manzuk, Natalia Nikitina
- Study of the interaction of the volunteer community in distributed computing projects 288-292
  Ilya I. Kurochkin
- Modeling of task scheduling in desktop grid systems at the initial stage of development 293-297
  Ilya I. Kurochkin, Evgeny A. Gerk
- Application of BOINC-based volunteer computing for comparison of the geoacoustic inversion algorithms efficiency 298-301
  Oleg S. Zaikin, Pavel S. Petrov, Ilya I. Kurochkin
- Different approaches for elastic imaging using multiprocessor computing systems 302-306
  Vasiliy. I. Golubev, Alena V. Favorskaya
- Problems of date and time data types in relational model of data 307-312
  Vladimir Dimitrov
- Improving the efficiency of energy consumption in smart grids with application of artificial intellect 313-317
  Eugene Yu. Shchetinin
- Smart buildings energy savings with gradient boosting algorithm 318-322
  Eugene Yu. Shchetinin, Evgenia A. Popova
- A new approach to the development of provenance metadata management systems for large scientific experiments 323-327
  Andrey P. Demichev, Julia Yu. Dubenskaya, Alexander P. Kryukov, Stanislav P. Polyakov, Nikolai V. Prikhod’ko
- On porting of applications to new heterogeneous systems 328-332
  Alexander Bogdanov, Nikita Storublevtcev, Vladimir Mareev
- Algorithms for the calculation of nonlinear processes on hybrid architecture clusters 333-336
  Alexander V. Bogdanov, Vladimir V. Mareev, Nikita Storublevtcev
- On conсeptual response to some of the blockchain problems 337-341
  Alexander V. Bodganov, Alexander B. Degtyarev, Vladimir V. Korkhov, Oleg O. Iakushkin, Valery Khvatov
- Comparison of different convolution neural network architectures for the solution of the problem of emotion recognition by facial expression 342-345
  Anton O. Vorontsov, Alexey N. Averkin
- Full-wave simulation of the earthquake initiaion process 346-350
  Vasily Golubev, Yulia Golubeva
- Combining satellite imagery and machine learning to predict atmospheric heavy metal contamination 351-358
  Alexander Uzhinskiy, Gennady Ososkov, Pavel Goncharov, Marina Frontaseva
- Visualisation of the quantum phase space of instantaneous heart rhythm 359-363
  Sergey A. Mikheev, Viktor P. Tsvetkov, Ilya V. Tsvetkov
- Chaotic dynamics of instantaneous heart rhythm and its phase space 364-368
  Alexandr P. Ivanov., Aleksey N. Kudinov, Sergey A. Mikheev, Viktor P. Tsvetkov, Ilya V. Tsvetkov
- Text segmentation on photorealistic images 369-373
  Valery Grishkin, Alexander Ebral, Nikolai Stepenko, Jean Sene
- Distributed GLR-parser for natural languag processing 374-377
  Vladislav L. Radishevskii, Aleksey D. Kulnevich, Roman A. Chugunov, Anton A. Shevchuk
- Application of russian named entity recognition and coreference resolution in the oil industry 378-382
  Aleksey D. Kulnevich, Vladislav L. Radishevskii, Roman A. Chugunov, Anton A. Shevchuk
- Distributed virtual cluster management system 383-387
  Vladimir V. Korkhov, Sergey S. Kobyshev, Alexander B. Degtyarev, Amissi Cubahiro, Luciano Gaspary, Xingce Wang, Zhongke Wu
- Data consolidation and analysis system for brain research 388-392
  Vladislav I. Volosnikov, Vladimir V. Korkhov, Andrey O. Vorontsov, Kirill V. Gribkov, Alexander B. Degtyarev, Alexander V. Bogdanov, Natalia M. Zalutskaya, Nikolay G. Neznanov, Natalia I. Ananyeva
- Вероятностно-стоимостной подход к оптимизации распределенных систем хранения данных физических экспериментов
  (Probability-cost approach to optimizing of distributed data storage systems for physical experiments) 393-399
  Vladimir V. Trofimov, Andrey V. Nechaevskiy, Gennadiy A. Ososkov, Daria I. Priakhina
- Development of software for face retrieval systems modeling 400-404
  Nadezhda Shchegoleva, Varvara Petrova
- Current status of data center for cosmic rays based on KCDC 405-409
  Victoria A. Tokareva, Dmitry G. Kostunin, Andreas Haungs
- Accelerating real-time ship motion simulations using general purpose GPU computations 410-414
  Ivan Petriakov, Ivan Gankevich, Vladimir Korkhov, Degtyarev Alexander
- Real-time visualization of ship and wavy surface motions based on GPGPU computations 415-418
  Anton Gavrikov, Andrei Ivashchenko, Ivan Gankevich, Nataliia Kulabukhova, Alexander Bogdanov, Alexander Degtyarev, Vladimir Rukovchuk
- A distributed data warehouse system for astroparticle physics 419-423
  Minh-Duc Nguyen, Alexander Kryukov, Julia Dubenskaya, Elena Korosteleva, Stanislav Polyakov, Evgeny Postnikov, Igor Bychkov, Andrey Mikhailov, Alexey Shigarov, Oleg Fedorov, Yulia Kazarina, Dmitry Shipilov, Dmitry Zhurov
- Optimization of neural networks training with vector-free heuristic on Apache Spark 424-430
  Kamil G. Khamitov, Nina N. Popova
- Particle identification in ground-based gamma-ray astronomy using convolutional neural networks 431-435
  Evgeny B. Postnikov, Igor V. Bychkov, Julia Y. Dubenskaya, Oleg L. Fedorov, Yulia A. Kazarina, Elena E. Korosteleva, Alexander P. Kryukov, Andrey A. Mikhailov, Minh-Duc Nguyen, Stanislav P. Polyakov, Alexey O. Shigarov, Dmitry A. Shipilov, Dmitry P. Zhurov
- Agent technology situational express analysis in assessment of technological development level of the BRICS countries 436-440
  Diana I. Koshlan, Evheniy S. Tretyakov, Vladimir V. Korenkov, Boris N. Onykij, Alexey A. Artamonov
- Контекстная графическая среда пространственной визуализации результатов вычислительных экспериментов в механике сплошных сред
  (Contextual graphical environment for spatial visualisation of numerical experiments in continuum mechanics) 441-446
  Vasily N. Khramushin
- Semantic information management: the approach to semantic assets development lifecycle 447-452
  Yury Akatkin, Elena Yasinovskaya, Mikhail Bich
- Time series and data analysis based on hybrid models of deep neural networks and neuro-fuzzy networks 453-456
  Alexey N. Averkin, Sergey A. Yarushev
- NRC KI participation in the DataLake project 457-461
  Andrey K. Kiryanov, Alexei A. Klimentov, Andrey K. Zarochentsev
- Texture generation for archaeological reconstructions 462-466
  Oleg O. Iakushkin, Daniil M. Malevanniy, Alexander B. Degtyarev, Dmitrii A. Selivanov, Anna I. Fatkina
- GPGPU implementation of Schrödinger's smoke for Unity3D 467-469
  Oleg O. Iakushkin, Anastasia P. Iashnikova, Olga S. Sedova
- Russian-language speech recognition system based on DeepSpeech 470-474
  Oleg O. Iakushkin, George A. Fedoseev, Anna S. Shaleva, Alexander B. Degtyarev, Olga S. Sedova
- Building corpora of transcribed speech from open access sources 475-479
  Oleg O. Iakushkin, George A. Fedoseev, Anna S. Shaleva, Olga S. Sedova
- Многомерный анализ данных о продажах на основе технологии OLAP
  (Multidimensional analysis of data based on OLAP technology) 480-485
  Saule Musaevna Sarsimbaeva, Vladimir Todorov Dimitrov
- Data knowledge base for the ATLAS collaboration 486-492
  Marina Golosova, Vasily Aulov, Maria Grigorieva, Anastasiia Kaida
- О согласовании вычислительного эксперимента при интерактивном моделировании гидромеханики корабля в штормовом море
  (On agreement of computational experiment in interactive simulation of the ship hydromechanics on a stormy sea) 493-498
  Alexander V. Bogdanov, Ivan V. Gankevich, Alexander B. Degtyarev, Vasily N. Khramushin
- Discrete and global optimization in Everest distributed environment by loosely coupled branch-and-bound solvers 499-503
  Sergey A. Smirnov, Vladimir V. Voloshinov
- Geometry Database for the CBM experiment and its first application to the experiments of the NICA project 504-508
  Elena P. Akishina, Evgeny I. Alexandrov, Igor N. Alexandrov, Irina A. Filozova,Volker Friese, Konstantin V. Gertsenberger, Viktor .V. Ivanov, Oleg V. Rogachevsky
- WLCG data lake prototype for HL-LHC 509-512
  Ivan Kadochnikov, Ian Bird, Gavin McCance, Jaroslava Schovancova, Maria Girone, Simone Campana, Xavier Espinal Currul
- Using TensorFlow to solve the problems of financial forecasting for high-frequency trading 513-517
  Alexander V. Bogdanov, Alexey S. Stankus
- Comparison of python 3 single-GPU parallelization technologies on the example of a charged particles dynamics simulation problem 518-522
  Alexey Boytsov, Ivan Kadochnikov, Maxim Zuev, Andrey Bulychev, Yaroslav Zolotuhin, Igor Getmanov
- Checking foreign counterparty companies using Big Data 523-527
  Lazar A. Badalov, Sergey D. Belov, Ivan S. Kadochnikov
- Labour market monitoring system 528-532
  Sergey D. Belov, Irina A. Filozova, Ivan S. Kadochnikov, Vladimir V. Korenkov, Roman N. Semenov, Pavel A. Smelov, Petr V. Zrelov

### Posters

- An image verification framework development 533-537
  Andrey Nechaevskiy, Ahmed Elaraby
- Efficiency measurement system for the computing cluster at IHEP 538-543
  Victoria Ezhova, Viktor Kotliar
- Combined explicit-implicit taylor series methods 544-548
  Stefka Nikolaeva Dimova, Ivan Georgiev Hristov, Radoslava Danailova Hristova, Igor Viktorovich Puzynin, Taisia Petrovna Puzynina, Zarif Alimjonovich Sharipov, Nikolai Georgiev Shegunov, Zafar Kamaridinovich Tukhliev
- Data gathering and analysis for the monitoring of the Russian labour market 549-552
  Javad Javadzade, Sergey Belov
- Application of HUBzero platform for the educational process in astroparticle physics 553-557
  Yulia Kazarina, Igor Bychkov, Alexander Kryukov, Julia Dubenskaya, Elena Korosteleva, Dmitriy Kostunin, Minh-Duc Nguyen, Stanislav Polyakov, Evgeny Postnikov, Andrey Mikhailov, Alexey Shigarov, Oleg Fedorov, Dmitry Shipilov, Dmitry Zhurov
- Event-driven automation and ChatOps on IHEP computing cluster 558-562
  Anna Kotliar, Victor Kotliar
- Using binary file format description languages for documenting, parsing and verifying raw data in TAIGA experiment 563-567
  Igor Bychkov, Oleg Fedorov, Alexey Hmelnov, Elena Korosteleva, Dmitriy Kostunin, Alexander Kryukov, Andrey Mikhailov, Alexey Shigarov
- Pseudo-random number generator based on neural network 568-572
  Migran N. Gevorkyan, Anastasia V. Demidova, Anna V. Korolkova, Dmitry S. Kulyabov, Leonid A Sevastianov, Ivan M. Gostev
- Модернизация веб-сервиса для программы моделирования центров хранения и обработки данных
  (Modernization of web service for the data center simulation program) 573-578
  Dmitry M. Marov, Daria I. Priakhina
- Analysis of the features of the optimal logical structure of distributed databases 579-584
  Elena V. Nurmatova, Victor V. Gusev, Victor V. Kotliar
- Using of multivariate quantile function for solving bioinformatics problems 585-589
  Sergey V. Poluyan, Nikolay M. Ershov
- A way of anomaly detection in engineering equipment characteristics of Symmetra at IHEP IT center 590-594
  Ekaterina Popova, Viktor Kotliar
- Sensitivity analysis in a problem of ReaxFF molecular-dynamic force field optimization 595-600
  Konstantin S. Shefov, Margarita M. Stepanova
- Оптимизация применения приложений TensorFlow на рабочей станции Intel® Xeon® Platinum
  (Optimisation of TensorFlow applications on the workstation Intel® Xeon® Platinum) 601-604
  Svetlana К. Shikota
- Scalability of the parallel strongin algorithm in the problem of optimizing a molecular-dynamic force field 605-610
  Konstantin S. Shefov, Margarita M. Stepanova
- Convolutional neural networks for self-driving cars on GPU 611-614
  Boris V. Tiulkin, Nataliia V. Kulabukhova
- Possible application areas of machine learning techniques at MPD/NICA experiment and evaluation of their implementation prospects in distributed computing environment 615-619
  Dmitry A. Zinchenko, Eduard G. Nikonov, Alexander I. Zinchenko
- Применение эволюционных и роевых алгоритмов оптимизации для решения модельной задачи предсказания структуры белка
  (Application of evolutionary and swarm optimization algorithms for solving the model problem of predicting the protein structure) 620-625
  Maxim A. Bystrov, Nikolay M. Ershov
- Анализ параллельной структуры популяционных алгоритмов оптимизации
  (The analysis of parallel structure of populational optimization algorithms) 626-631
  Nikolay M. Ershov, Sergey V. Poluyan
- Применение нейронной сети хопфилда для автоматизированной подборки КПЭ для руководителей компаний
  (The use of Hopfield neural network for automated selection of KPI for heads of the companies) 632-637
  Denis M. Kravchenko, Eduard G. Nikonov
- IT-ecosystem of the HybriLIT heterogeneous platform for high-performance computing and training of IT-specialists 638-644
  Gheorge Adam, Maxim Bashashin, Dmitry Belyakov, Margarit Kirakosyan, Mikhail Matveev, Dmitry Podgainy, Tatiana Sapozhnikova, Oksana Streltsova, Shushanik Torosyan, Martin Vala, Lucia Valova, Alexei Vorontsov, Tatiana Zaikina, Elena Zemlyanaya, Maxim Zuev

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