[1,2,3,4,5,6,7,8,9,17,16,15,14,13,12,11,10,20,21, 22,23,24,25,26,18,19,27,28,29,37,36,35,34,33,32, 31,30,40,41,42,43,44,45,46,38,39,47,48,49,57,56, 55,54,53,52,51,50,60,61,62,63,64,65,66,58,59,67, 68,69,77,76,75]