Problem 2 – 0:35
Problem 3 – 1:51
Problem 4 – 3:00
Problem 5 – 3:42
Problem 6 – 6:15
Problem 7 – 8:10
Problem 8 – 9:53
Problem 9 – 11:57
Problem 10 – 12:30
Problem 11 – 13:19
Problem 12 – 14:55