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