R1: 7 3 1 8
R2: 4 7 1 2
R3: 9 2 7 4
R4: 3 10 11 1
R5: 4 3 2 1
R6: 3 5 4 6
R7: 5 6 1 9
R8: 8 5 1 6
R9: 5 2 3 1
R10: 1 11 2 5
R11: 10 4 1 6
R12: 8 5 6 10
R2: 4 7 1 2
R3: 9 2 7 4
R4: 3 10 11 1
R5: 4 3 2 1
R6: 3 5 4 6
R7: 5 6 1 9
R8: 8 5 1 6
R9: 5 2 3 1
R10: 1 11 2 5
R11: 10 4 1 6
R12: 8 5 6 10