[0,0,0,1,0,1,0,1,2,0,1,2,0,1,2,3,0,1,2,3,0,1,2,3, 4,0,1,2,3,4,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,6, 0,1,2,3,4,5,6,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,0,1, 2,3,4,5,6,7,8,0,1,2,3,4,5,6,7,8,0,1,2,3,4,5,6,7,8, 9,0,1]