[2,4,-1,1,3,-2,0,2,4,-1,1,3,5,0,2,4,-1,1,3,5,0,2, 4,6,1,3,5,0,2,4,6,1,3,5,7,2,4,6,1,3,5,7,2,4,6,8,3, 5,7,2,4,6,8,3,5,7,9,4,6,8,3,5,7,9,4,6,8,10,5,7,9, 4,6,8,10,5,7,9,11,6,8,10,5,7,9,11,6,8,10,12,7,9, 11,6,8]