#include <iostream>
#include <algorithm>
using namespace std;
int a[100001]={
0,1,2,3,4,5,1,2,3,1,2,3,2,3,4,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,1,2,3,4,5,6,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,2,3,4,5,6,7,3,4,5,1,2,3,4,5,6,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,3,4,5,5,6,7,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,1,2,3,4,5,6,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,3,4,5,5,6,7,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,1,2,3,4,5,6,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,5,6,7,6,7,8,6,7,8,4,5,6,7,8,9,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,1,2,3,4,5,6,2,3,4,2,3,4,3,4,5,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,3,4,5,6,7,8,4,5,6,3,4,5,5,6,7,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,4,5,6,7,8,9,5,6,7,4,5,6,6,7,8,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,4,5,6,7,8,9,5,6,7,4,5,6,6,7,8,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,4,5,6,7,8,9,5,6,7,4,5,6,6,7,8,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,6,7,8,9,10,11,7,8,9,6,7,8,8,9,10,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,6,7,8,9,10,11,7,8,9,6,7,8,8,9,10,7,8,9,2,3,4,5,6,7,3,4,5,3,4,5,4,5,6,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,4,5,6,7,8,9,5,6,7,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,5,6,7,7,8,9,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,4,5,6,7,8,9,5,6,7,4,5,6,6,7,8,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,5,6,7,8,9,10,6,7,8,5,6,7,7,8,9,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,6,7,8,8,9,10,7,8,9,6,7,8,8,9,10,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7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10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,6,7,8,9,10,11,7,8,9,6,7,8,8,9,10,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,7,8,9,10,11,12,8,9,10,7,8,9,9,10,11,8,9,10,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,7,8,9,10,11,12,8,9,10,7,8,9,9,10,11,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,7,8,9,10,11,12,8,9,10,7,8,9,9,10,11,8,9,10,8,9,10,9,10,11,9,10,11,8,9,10,10,11,12,9,10,11,8,9,10,10,11,12,9,10,11,8,9,10,10,11,12,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,9,10,11,11,12,13,10,11,12,9,10,11,11,12,13,10,11,12,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,8,9,10,10,11,12,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,7,8,9,10,11,12,8,9,10,7,8,9,9,10,11,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,9,10,11,11,12,13,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,5,6,7,8,9,10,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,8,9,10,10,11,12,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,7,8,9,10,11,12,8,9,10,7,8,9,9,10,11,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,6,7,8,9,10,11,7,8,9,7,8,9,8,9,10,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,8,9,10,10,11,12,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,10,11,12,12,13,14,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,10,11,12,12,13,14,11,12,13,11,12,13,12,13,14,12,13,14,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,9,10,11,12,13,14,10,11,12,9,10,11,11,12,13,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,10,11,12,12,13,14,11,12,13,11,12,13,12,13,14,12,13,14,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,11,12,13,12,13,14,12,13,14,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,9,10,11,12,13,14,10,11,12,10,11,12,11,12,13,11,12,13,10,11,12,12,13,14,11,12,13,11,12,13,12,13,14,12,13,14,10,11,12,13,14,15,11,12,13,7,8,9,10,11,12,8,9,10,8,9,10,9,10,11,9,10,11,9,10,11,10,11,12,10,11,12,10,11,12,11,12,13,11,12,13,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,8,9,10,11,12,13,9,10,11,9,10,11,10,11,12,10,11,12,9,10,11,11,12,13,10,11,12,3,4,5,6,7,8,4,5,6,4,5,6,5,6,7,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,7,8,9,8,9,10,8,9,10,5,6,7,8,9,10,6,7,8,4,5,6,7,8,9,5,6,7,5,6,7,6,7,8,6,7,8,6,7,8,7,8,9,7,8,9,6,7,8,8,9,10,7,8,9,5,6,7,8,9,10,6,7,8,6,7
};

int main(){
  int N;
  cin >> N;
  cout << a[N]<<endl;
}


Measured memory_bytes: 256