using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Magatro
{
    
    static void Main()
    {
        int L = int.Parse(Console.ReadLine());
        int M = int.Parse(Console.ReadLine());
        int N = int.Parse(Console.ReadLine());
        int q = N;
        M += q / 25;
        N %= 25;
        q = M;
        L += q / 4;
        M %= 4;
        L %= 10;
        Console.WriteLine(L + M + N );
    }
}