[0,1,2,1,2,3,0,2,4,2,3,4,1,3,5,3,4,5,0,3,6,1,4,7, 0,4,8,1,5,9,3,6,9,0,5,10,4,7,10,8,9,10,9,10,11,0, 6,12,4,8,12,6,9,12,8,10,12,10,11,12,1,7,13,3,8,13, 5,9,13,7,10,13,9,11,13,11,12,13,4]