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