[0,1,2,2,3,3,3,3,4,4,4,4,5,4,4,3,4,5,6,5,4,5,6,4, 7,6,5,5,5,5,8,4,9,5,6,6,9,7,6,5,10,5,8,6,5,7,11,5, 5,8,5,7,7,6,12,5,7,6,13,6,14,9,5,4,6,10,15,6,5,7, 15,6,16,10,7,8,14,7,8,6,6,11,6,6,5,9,17,6,13,6,18, 8,9,12]