#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
    int m;
    cin>>m;
    vector<int>a(m);
    for(int i=0;i<m;i++)
        cin>>a[i];
    if(m<50)
        cout<<7;
    else if(m<=100)
        cout<<6;
     else if(m>100)
         cout<<3;
      else 
        cout<<(m);
    return 0;
}