#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;

int main(){
    int l, m, n, sum1;
    cin >> l >> m >> n;
    sum1 = l*100 + m*25 + n*1;
    sum1 %= 1000;
    m = sum1%100;
    l = sum1/100;
    n = m%25;
    m /= 25;
    cout << l + m + n << endl;
}