[2,1,4,3,6,5,8,9,10,12,7,14,15,16,11,18,20,21,22, 24,25,13,26,27,28,30,32,17,33,34,35,36,38,39,40, 42,19,44,45,46,48,49,50,51,52,54,23,55,56,57,58, 60,62,63,64,65,66,29,68,69,70,72,74,75,76,77]