problem

39 mins 28 secs

11 mins 47 secs

5 mins 9 secs

6 mins 10 secs

10 mins 18 secs

5 mins 56 secs

6 mins 15 secs

6 mins 15 secs

7 mins 5 secs

5 mins

6 mins 3 secs

8 mins 13 secs

10 mins 51 secs

38 mins 38 secs

2 mins 20 secs

5 mins 46 secs

12 mins 1 sec

24 mins 42 secs

2 mins 20 secs

6 mins

36 mins 21 secs

2 mins 4 secs

14 mins 39 secs

10 mins 2 secs

10 mins 43 secs

17 mins 27 secs

8 mins 52 secs

4 mins 47 secs

19 mins 32 secs

6 mins

10 mins 20 secs

6 mins 9 secs

12 mins 45 secs

2 mins 5 secs

2 mins 24 secs

10 mins 8 secs

8 mins

4 mins 56 secs

17 mins 58 secs

12 mins 32 secs