[1,1,2,3,1,2,3,4,5,6,1,2,3,4,5,6,7,8,9,10,1,2,3,4, 5,6,7,8,9,10,11,12,13,14,15,1,2,3,4,5,6,7,8,9,10, 11,12,13,14,15,16,17,18,19,20,21,1,2,3,4,5,6,7,8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25, 26,27,28,1,2,3]