[1,2,1,2,3,2,3,4,5,6,5,6,5,6,7,6,7,8,7,8,9,8,9,8, 9,10,11,10,11,12,13,14,13,14,15,16,15,16,17,18,17, 18,17,18,19,20,21,20,21,20,21,22,23,24,23,24,23, 24,25,26,27,26,27,26,27,28,27,28,29,28,29,30,29, 30,29,30,31]