Problem set 17:
[1]
[2]
[3,4]
[5abc]
[5d]
[6]
[7,8a]
[8bc]
[9]
Problem set 17:
[1]
[2]
[3,4]
[5abc]
[5d]
[6]
[7,8a]
[8bc]
[9]