[3,4,2,1,5,6,3,4,2,1,9,10,5,6,3,4,2,1,17,18,9,10, 5,6,3,4,2,1,33,34,17,18,9,10,3,4,2,1,65,66,33,34, 17,18,9,10,5,6,3,4,2,1,129,130,65,66,33,34,17,18, 9,10,5,4,2,1,257,258,129,130,65,66,33,34,17,18,9, 10,5,6,3,4,2,1]