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