[1,2,1,2,1,2,3,1,2,1,3,1,2,3,4,1,2,3,1,4,2,1,3,1, 2,3,4,5,1,2,3,4,1,5,2,3,1,4,5,2,1,3,1,2,3,4,5,6,1, 2,3,4,5,1,6,2,3,4,1,5,6,2,3,1,4,5,6,2,1,3]