2+2+2+2+2+2+2+2+2
2+2+2
16
4
14
2x4
10
2+2+2+2+2+2
2+2+2+2+2+2+2+2
2x5
2x9
2+2+2+2
2+2
2x3
2x2
12
6
2x6
18
8
2+2+2+2+2+2+2
2+2+2+2+2
2x8
2x7
