[1,2,3,4,6,5,7,9,10,8,11,13,15,14,12,16,18,20,21, 19,17,22,24,26,28,27,25,23,29,31,33,35,36,34,32, 30,37,39,41,43,45,44,42,40,38,46,48,50,52,54,55, 53,51,49,47,56,58,60,62,64,66,65,63,61,59,57,67, 69,71,73,75,77]