12,16,13,15,14,48,49,47,19,20,21,23,22,17,18,43,41,42,8,11,9,10,7,46,44,45,39,37,40,38,36,28,27,6,5,33,30,29,32,31,26,25,24,34,35,4,1,0,2,3