[1,2,4,6,3,8,5,10,12,7,14,16,18,9,20,22,11,24,26, 13,28,30,15,32,17,34,36,19,38,40,21,42,44,23,46, 48,25,50,52,27,54,56,29,58,60,31,62,64,66,33,68, 70,35,72,74,37,76,78,39,80,82,41,84,86,43,88,90]