[1,2,3,2,4,5,4,3,6,7,6,4,8,6,9,8,5,10,11,10,9,8,6, 12,13,12,7,14,12,10,15,14,12,8,16,17,16,15,12,9, 18,19,18,16,15,10,20,18,14,21,20,11,22,23,22,21, 20,18,16,12,24,20,25,24,13,26,24,18,27,26,24]