#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define pb push_back
#define mp make_pair
#define rep(i,n) for(int i=0;i<(n);++i)

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	int l,m,n;cin >> l >> m >> n;
	int ans=0;
	m+=n/25;
	ans+=n%25;
	l+=m/4;
	ans+=m%4;
	ans+=l%10;
	cout << ans << endl;
}