#define _CRT_SECURE_NO_DEPRECATE

#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;

string s;

int main(){
	int i;

	//freopen("test.in", "r", stdin);
	//freopen("test.out", "w", stdout);

	cin >> s;

	cout << "73";

	return 0;
}