#include <iostream>
#include <math.h>
#include <algorithm>
#include <functional>
#include <vector>
#include <typeinfo>
#include <climits>
using namespace std;
#define INIT cin.tie(0); ios::sync_with_stdio(false);
#define FOR(i, a, n) for (int i = a; i < n; i++)
#define REP(i, n) for(int i = 0; i < n; i++)

int main()
{
    INIT;

    int l, m, n;
    cin >> l >> m >> n;

    int sum = l * 100 + m  * 25 + n;
    sum %= 1000;
    int c = 0;
    c += sum / 100;
    sum %= 100;
    c += sum / 25;
    sum %= 25;
    c += sum;

    cout << c << endl;

    return 0;
}