题解

#if 0
12345678910 1234567891011 123456789101112
0 1 1
#endif
#include <bits/stdc++.h>
using namespace std;
int n;

int main()
{
cin>>n;
if(n%30) cout<<n/3*2;
else if(n%31) cout<<n/32;
else cout<<n/32+1;
return 0;
}