class Program
{
    static void Main(string[] args)
    {
        string line = System.Console.ReadLine().Trim();
        int L = int.Parse(line);
        line = System.Console.ReadLine().Trim();
        int M = int.Parse(line);
        line = System.Console.ReadLine().Trim();
        int N = int.Parse(line);

        int totalcount = 0;

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

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

        totalcount += L % 10;

        System.Console.WriteLine(totalcount);

    }
}