[2,2,2,2,3,3,3,3,3,3,5,5,5,5,5,5,5,5,7,7,7,7,7,7, 7,7,7,11,11,11,11,11,11,11,11,11,11,13,13,13,13, 13,13,13,13,13,13,13,13,17,17,17,17,17,17,17,17, 17,17,17,17,17,17,19,19,19,19,19,19,19,19,19,19, 19,19,19,19,19]