#include <iostream>
#include <fstream>
#include <algorithm>
#include <string>
#include <cstring>
#include <cmath>
#include <vector>
#include <set>
#include <utility>
#include <map>
#define ll long long
using namespace std;
const int NMAX = 200003;

string s;

int main(){
    #ifndef ONLINE_JUDGE
    ifstream cin("B.in");
    ofstream cout("B.out");
    #endif
    int i,j,N,M,x;

    cin >> s;

    cout << "73\n";

    return 0;
}