using System;

namespace No32
{
    class Program
    {
        static void Main(string[] args)
        {
            var L = int.Parse(Console.ReadLine());
            var M = int.Parse(Console.ReadLine());
            var N = int.Parse(Console.ReadLine());

            var MM = N / 25;
            N -= MM * 25;
            M += MM;

            var LL = M / 4;
            M -= LL * 4;
            L += LL;

            var result = L % 10 + M + N;
            Console.Write(result);
        }
    }
}