[0,1,1,2,3,4,4,5,4,5,5,6,5,6,6,7,8,9,6,7,7,8,8,9, 9,10,10,11,11,12,12,13,13,14,14,15,12,13,13,14,14, 15,15,16,16,16,17,18,18,19,19,20,20,21,21,22,19, 20,20,21,19,20,20,20,21,22,22,23,23,24,24,25,20, 21,21,21,22,23,23,24,25,26]