Integration levels for each type
1w9 can integrate and look like a 7w6
1w2 can integrate and look like a 7w8
2w1 can integrate and look like a 4w5
2w3 can integrate and look like a 4w3
3w2 can integrate and look like a 6w5
3w4 can integrate and look like a 6w7
4w3 can integrate and look like a 1w9
4w5 can integrate and look like a 1w2
5w4 can integrate and look like a 8w7
5w6 can integrate and look like a 8w9
6w5 can integrate and look like a 9w8
6w7 can integrate and look like a 9w1
7w6 can integrate and look like a 5w6
7w8 can integrate and look like a 5w4
8w7 can integrate and look like a 2w1
8w9 can integrate and look like a 2w3
9w1 can integrate and look like a 3w4
9w8 can integrate and look like a 3w2