1 2
2 97
3 99991
4 99999999999973
5 999999999999999999999999999999999999999917
6 999999999999999999999999999999999999999999999999999999999999999999999857
7 99999999999999999999999999999999999999999999999999999999999999999999999853
8 999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999293