[1,3,2,7,6,5,4,9,8,13,12,11,10,15,14,21,20,19,18, 17,16,25,24,23,22,27,26,31,30,29,28,35,34,33,32, 37,36,41,40,39,38,47,46,45,44,43,42,49,48,51,50, 55,54,53,52,57,56,69,68,67,66,65,64,63,62,61,60, 59,58,79,78,77]