1 subtask (11 points): 1-3
2 subtask (13 points): 4-6
3 subtask (10 points): 7-11
4 subtask (12 points): 12-16
5 subtask (15 points): 17-21
6 subtask (13 points): 22-25
7 subtask (15 points): 26-33
8 subtask (11 points): 34-42
The points for a subtask are given only if all the tests for the subtask are passed.
