[1,1,2,2,3,3,4,4,0,5,7,9,10,11,12,13,14,15,1,7,11, 13,15,16,18,19,20,22,2,9,13,16,18,21,22,24,26,27, 3,10,15,18,22,24,26,28,30,32,4,11,16,21,24,27,30, 32,34,36,5,12,18,22,26,30,33,35,37,40,6,13,19,24, 28,32,35,38,41]