using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Text;
using static System.Console;
using static System.Math;

namespace CP
{
    class Atria
    {
        static void Main(string[] args)
        {
            int l = int.Parse(ReadLine());
            int m = int.Parse(ReadLine());
            int n = int.Parse(ReadLine());

            while (n >= 25)
            {
                n -= 25;
                m++;
            }
            while (m >= 4)
            {
                m -= 4;
                l++;
            }
            while (l >= 10)
            {
                l -= 10;
            }
            WriteLine(l+m+n);

        }
    }
}