[0,0,1,1,2,1,2,2,2,3,4,3,4,5,4,4,5,5,6,5,6,7,8,7, 7,8,9,8,9,8,9,9,10,11,10,10,11,12,13,12,13,12,13, 14,13,14,15,14,14,14,15,16,17,16,17,16,17,18,19, 18,19,20,19,19,20,19,20,21,22,21,22,20,21]