#include <vector>
#include <string>
#include <algorithm>
#include <numeric>
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <utility>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <iterator>
#include <cmath>
#include <iomanip>
using namespace std;

using ull = unsigned long long;
using ll = long long;

int main()
{
    int l,m,n;
    cin >> l >> m >> n;

    m += n/25;
    n%=25;
    l += m/4;
    m%=4;
    l%=10;

    cout << l + m + n << endl;
}