Codeforces 630A Again Twenty Five!

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#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <math.h>
#include <string>
#include <algorithm>

using namespace std;

int main() {
	long long a;
	scanf("%lld", &a);
	printf("25\n");
	return 0;
}