#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <unordered_map>
#include <stdint.h>
#include <cmath>
#include <algorithm>


using namespace std;
typedef int64_t Int;
typedef uint64_t UInt;


int main(int argc, char **argv) {

    UInt n = 0;
    cin >> n;

    cout << 25;

    return 0;
}
