[2,1,4,1,6,1,8,9,10,1,12,1,14,15,16,1,18,1,20,21,22,1,24,25,26,27,28,1,30,1,32,33,34,35,36,1,38,39,40,1,42,1,44,45,46,1,48,49,50,51,52,1,54,55,56,57,58,1,60,1,62,63,64,65,66,1,68,69,70,1,72,1,74,75,76,77,78,1]
