#include <iostream>
#include <vector>
#include <map>
#include<string>
#include<queue>
#include<math.h>
#define all(x) begin(x),end(x)
#define ll long long
#define P pair<int,int>
#define lP pait<ll,ll>
using namespace std;
int main() {
    int l,m,n;
    cin>>l>>m>>n;
    m+=l/25;
    l=l%25;
    n+=m/4;
    m=m%4;
    n=n%10;
    cout<<l+n+m<<endl;
    return 0;
}