#include <bits/stdc++.h>
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=k;i<(ll)(n);i++)
#define fore(i,a) for(auto &i:a)
using namespace std;
using ll = long long; 


int main() {
	int l,m,n;
	cin >> l >> m >> n;
	int x25 = n / 25;
	int x100 = (m + x25) / 4;
	int y1 = n % 25;
	int y25 =  (m + x25) % 4;
	int y100 = (l + x100) % 10;
	cout << y1 + y25 + y100 << endl;
	return 0;
}