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