int
  A[] = {36, 1, 1, 1,  2,  3, 3,  4, 4, 4,  5, 5,  6, 6,  7, 7, 7, 7,  8, 8, 8,  9,  9,  9,   10, 10, 10, 10, 10,   11, 11, 11, 11,  12, 12, 12, 12},
  B[] = {12, 2, 4, 7,  1,  6, 7,  1, 7, 8,  9,12,  3,11,  1, 4, 8,10,  4, 7,10,  5, 10, 12,    7,  8,  9, 11, 12,    3,  6, 10, 12,   5,  9, 10, 11};
                                                       remove 7-8, 7-10,  10-11, 10-12 to get correct graph  representation