My name is Jan Myszka and i am from Wrocław a city in Poland

codeforces : https://codeforces.com/profile/jmyszka

atcoder : https://atcoder.jp/users/jmyszka

checklist : oichecklist.pythonanywhere.com/view/8349de27e28c19ceaa671625dc66c8c8c3aa283c