[0,2,4,6,8,10,12,14,16,18,3,5,7,9,11,13,15,17,19, 21,6,8,10,12,14,16,18,20,22,24,9,11,13,15,17,19, 21,23,25,27,12,14,16,18,20,22,24,26,28,30,15,17, 19,21,23,25,27,29,31,33,18,20,22,24,26,28,30,32, 34,36]