三,三,4,4,5,5,5,5,5,6,5,6,7,6,7,6,7,7,7,7,8,7,7,8,9,8,8,9,8,8,9,9,8,9,9,10,9,9,9,10,11,9,10,10,11,9,10,10,11,11,10,10,9,11,12,10,11,11,11,12,13,11,11,12,12,13,11,11,12,12,13,13,12,12,12,13,13,14,12,12,11,13,13,17,21,25,29,33,37,41,45,49,53,57,61,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,129,133,137,141,145,149,153,157,161,165,169,173,177,181,185,189,193,197,201,205,209,213,217,221,225,229,233