#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
  int l,m,n;
  cin>>l>>m>>n;
  m+=n/25;
  n=n%25;
  l+=m/4;
  m=m%4;
  l=l%10;
  cout<<l+m+n<<endl;
}