[0,2,3,4,5,5,7,6,6,7,11,7,13,9,8,8,17,8,19,9,10,
 13,23,9,10,15,9,11,29,10,31,10,14,19,12,10,37,21,
 16,11,41,12,43,15,11,25,47,11,14,12,20,17,53,11,
 16,13,22,31,59,12,61,33,13,12,18,16,67,21,26,14,
 71,12,73,39,13,23,18,18]