#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<stack>
#include<queue>
#include<list>
#include<bitset>

#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
#define INF 1000000000

using namespace std;


int main(void) {
	int l, m, n;
	int p = 0;

	cin >> l >> m >> n;
	while (n >= 25) {
		m++;
		n -= 25;
	}
	while (m >= 4) {
		l++;
		m -= 4;
	}
	while (l >= 10) {
		p++;
		l -= 10;
	}
	cout << l + m + n << endl;
	return 0;
}