#include <stdio.h>
#include <algorithm>
#include <deque>
using namespace std;
using ll = long long;

//32
int main() {
	int l, m, n;
	scanf("%d %d %d", &l, &m, &n);
	m += l / 25, l = l % 25;
	n += m / 4 , m = m % 4;
	n = n % 10;
	printf("%d\n", l + m + n);
}