namespace ConsoleApplication1
{
    class Program
    {
        static int getInt(string varName)
        {
            while (true)
            {
                try
                {
                    System.Console.Write(varName+" = ");
                    return int.Parse(System.Console.ReadLine());
                }
                catch { }
            }
        }

        static void Main(string[] args)
        {
            int M = getInt("M"),
                N = getInt("N"),
                Z = getInt("Z");

            var arr = new int[M,N,Z];
            for (int m = 0; m < M; m++)
                for (int n = 0; n < N; n++)
                    for (int z = 0; z < Z; z++)
                        arr[m, n, z] = getInt(string.Format("arr[{0},{1},{2}]",m,n,z));
            int? min = null, max = null;
            int sum = 0;
            for (int m = 0; m < M; m++)
                for (int n = 0; n < N; n++)
                    for (int z = 0; z < Z; z++)
                    {
                        if (min == null || arr[m, n, z] < min)
                            min = arr[m, n, z];
                        if (max == null || arr[m, n, z] > max)
                            max = arr[m, n, z];
                        sum += arr[m, n, z];
                    }
            float avr = sum / (float) (M*N*Z);
            System.Console.Write("min = {0}\nmax = {1}\navr = {2}", min, max, avr);
            System.Console.ReadKey();
        }
    }
}