[ [ 5, 25, 49, 53, 57, 60, 70, 74, 75, 86 ], 
  [ 7, 14, 17, 23, 26, 31, 33, 43, 44, 49, 52, 55, 56, 61, 67, 81, 83, 86, 87, 97 ] ]