1 - 4 - YES
2 - 4 - YES
3 - 2 - YES
4 - 3 - YES
5 - 3 - YES
6 - all - YES
7 - 3 - YES
RK - 1 - YES
https://contest.yandex.ru/contest/36255/enter
1 - 2 - YES
2 - 2 - YES
3 - 2 - YES
4 - 2 - YES
5 - all - YES/NO
RK - 1 - YES
RK - 2 - YES
RK - 3 - YES
RK - 4 - YES/NO
https://contest.yandex.ru/contest/37595/enter/
1 - all - YES
2 - all - YES
3 - all - YES
4 - all - NO
5 - 2 - NO
RK - 1 - YES
RK - 2 - YES
RK - 3 - YES