1-6-7-16-17
2-8-9-10-14-15
1-3-4-8-13
9=13-3-10-11-14-15-16
5-1.2.15.16.17
2-3-4-10-12-13
7-8-12
4-5-7-10-16-17
3=7-1-4-6-12-14
1-5-15-17-18