#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

int main()
{
    int L,M,S;
    int sum = 0;
    cin >> L >> M >> S;
    if (S > 25) {
        M += S/25;
        sum += S%25;
    }else{
        sum += S;
    }
    if (M > 4) {
        L += M/4;
        sum += M%4;
    }else{
        sum += M;
    }
    if (L > 10) {
        sum += L%10;
    }else{
        sum += L;
    }
    cout << sum << endl;
        
    return 0;
}