Pairing index 1: [0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 17, 18, 21, 21, 22, 23, 23, 24, 25, 39, 40, 42, 43, 44, 48, 49, 50, 53, 54, 55, 56, 57, 58, 59, 60, 62, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76] 
Pairing index 2: [76, 75, 74, 73, 72, 71, 70, 13, 21, 23, 25, 24, 23, 22, 7, 59, 60, 7, 13, 12, 8, 11, 10, 9, 30, 29, 50, 49, 48, 44, 43, 42, 69, 68, 67, 66, 65, 62, 17, 18, 58, 57, 56, 55, 54, 53, 6, 5, 4, 3, 2, 1, 0]
