[2,3,3,4,5,3,4,5,4,5,6,7,5,6,7,8,9,3,4,5,4,5,6,7, 5,6,7,8,9,4,5,6,7,5,6,7,8,9,6,7,8,9,10,11,7,8,9, 10,11,12,13,5,6,7,8,9,6,7,8,9,10,11,7,8,9,10,11, 12,13,8,9,10,11,12,13,14,15,9,10,11,12,13,14,15, 16,17,3,4,5,4,5,6,7]