Russia 🇷🇺 @Russia
🧮 #Russia's Saint-Petersburg is hosting the 62nd International Mathematical #Olympiad. #IMO2021 This year it is held remotely - 630 students from 109 nations are participating! Learn more: https://t.co/qsP0fci5lb #MathIsFun - Saint-Petersburg in numbers: facts & figures 👇 https://t.co/SKduL7IHN5 — PolitiTweet.org