# 15 different group configurations
[[ 0,  1], [ 2,  3], [ 4,  5], [ 6,  7], [ 8,  9], [10, 11], [12, 13], [14, 15]]
[[ 3, 10], [ 0,  2], [ 1, 15], [12,  6], [13,  8], [ 9, 14], [ 7,  5], [11,  4]]
[[ 3,  5], [10,  1], [ 8,  7], [13,  6], [ 9,  0], [15, 12], [11,  2], [14,  4]]
[[13,  5], [ 6,  2], [14,  1], [ 8, 12], [ 3,  7], [10, 15], [ 0, 11], [ 4,  9]]
[[ 2, 10], [11, 13], [ 6,  0], [ 9, 15], [14,  7], [ 8,  1], [ 4,  3], [12,  5]]
[[ 1,  3], [ 0,  5], [14,  8], [13, 10], [ 6,  4], [11,  7], [ 9, 12], [ 2, 15]]
[[12, 10], [ 5,  8], [15,  0], [ 6, 11], [13,  3], [ 9,  1], [ 4,  7], [14,  2]]
[[ 5,  1], [15,  6], [11,  3], [ 7, 10], [13,  0], [ 4,  8], [14, 12], [ 2,  9]]
[[ 0, 12], [13, 14], [ 1,  7], [ 9, 11], [10,  8], [ 6,  3], [ 2,  4], [ 5, 15]]
[[ 6, 10], [ 4, 13], [ 1, 12], [ 0,  8], [ 9,  5], [14,  3], [ 7,  2], [11, 15]]
[[ 1, 11], [ 0, 10], [ 3, 12], [ 9,  7], [14,  5], [15,  4], [ 2, 13], [ 8,  6]]
[[ 6,  1], [12, 11], [13,  9], [ 3,  8], [ 0,  4], [ 2,  5], [ 7, 15], [14, 10]]
[[12,  2], [ 3,  9], [15,  8], [10,  4], [14,  6], [13,  1], [11,  5], [ 7,  0]]
[[ 5,  6], [ 7, 12], [ 2,  8], [15, 13], [ 3,  0], [ 1,  4], [14, 11], [10,  9]]
[[15,  3], [ 9,  6], [ 2,  1], [ 7, 13], [12,  4], [ 8, 11], [10,  5], [ 0, 14]]
