[0,4,8,12,16,20,24,28,32,36,1,5,9,13,17,21,25,29, 33,37,2,6,10,14,18,22,26,30,34,38,3,7,11,15,19,23, 27,31,35,39,4,8,12,16,20,24,28,32,36,40,5,9,13,17, 21,25,29,33,37,41,6,10,14,18,22,26,30,34,38,42,7, 11,15,19,23]