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