[1,2,4,6,3,8,9,10,5,12,14,7,16,18,15,20,21,22,11, 24,26,13,28,30,25,27,33,36,32,34,17,38,19,40,35, 42,39,44,45,46,23,48,50,51,52,54,56,49,58,29,60, 55,57,63,66,62,31,64,68,70,65,72,69,74,37,76,78, 75,80]