[0,0,0,1,2,2,3,4,4,4,5,6,6,7,7,8,8,9,9,10,11,11, 12,12,13,13,14,15,15,15,16,16,17,18,19,19,19,19, 20,21,21,22,22,23,23,24,24,25,26,26,26,27,27,28, 29,29,30,30,30,31,31,32,33,33,33,34,34,35,35,36, 36,37,37]