#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
typedef long long ll;
typedef vector<ll> vll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvll;
const ll inf = 1e16;
const ll md = 1000000007;

int main() {
  int l,m,n;
  cin>>l>>m>>n;
  int s=100*l+25*m+n;
  s%=1000;
  int ans=0;
  vi cc={100,25};
  for(int c:cc){
    ans+=s/c;
    s%=c;
  }
  ans+=s;
  cout<<ans<<endl;
  return 0;
}