#include <iostream>
#include <numeric>
#include <algorithm>
#include <string>
#include <vector>
#include <cmath>
#include <queue>

#define rep(i, a) FOR(i, 0, a)
#define FOR(i, a, b) for(int i = a; i < b; ++i)

typedef long long ll;
typedef unsigned long long ull;
typedef std::pair<int, int> P;

int main(){
	int l, m, n;
	std::cin >> l >> m >> n;
	while (n >= 25)n -= 25, ++m;
	while (m >= 4)m -= 4, ++l;
	while (l >= 10)l -= 10;
	std::cout << l + m + n << std::endl;
	return 0;
}