#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(),x.end()
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
template<class T> inline bool chmax(T&a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T&a,T b){if(a>b){a=b;return 1;}return 0;}
using ll = long long;

int l,m,n,sum;

int main(){
    cin >> l >> m >> n;
    sum=(l*100+m*25+n)%1000;
    cout << sum/100+sum%100/25+sum%25 << endl;
}