--- Task 1
ok 1 - ("00:00", "23:55", "20:00") -> 5
ok 2 - ("01:01", "00:50", "00:57") -> 4
ok 3 - ("10:10", "09:30", "09:00", "09:55") -> 15
--- Task 2
ok 4 - (1,2,3,4) -> 4
ok 5 - (0,2,1,3) -> 2
1..5