using System;

class test1
{
    static void Main()
    {
        int L = int.Parse(Console.ReadLine());
        int M = int.Parse(Console.ReadLine());
        int N = int.Parse(Console.ReadLine());

        int a, b, c;

        a = N / 25;
        M = M + a;
        N = N % 25;

        b = M / 4;
        L = L + b;
        M = M % 4;

        L = L % 10;

        c = L + M + N;
        Console.WriteLine(c);
    }
}