F | x |
|
|
F1 | x1, x13, x16, x17 | F6 | x5 |
F2 | x2, x7, x8 | F7 | x3 |
F3 | x14 | F8 | x6, x12 |
F4 | x9, x11 | F9 | x10 |
F5 | x15 | F10 | x4 |