---

using System;

class Program
{
    static void Main()
    {
        int m = 5; // значение m
        int n = 4; // значение n

        // S1 = Π(1 + k), k = 1..m
        long S1 = 1;
        for (int k = 1; k <= m; k++)
        {
            S1 *= (1 + k);
        }

        // S2 = Σ(2 * i^2), i = 1..n
        int S2 = 0;
        for (int i = 1; i <= n; i++)
        {
            S2 += 2 * i * i;
        }

        // S = S1 / S2
        double S = (double)S1 / S2;

        Console.WriteLine($"S1 = {S1}");
        Console.WriteLine($"S2 = {S2}");
        Console.WriteLine($"S = {S}");
    }
}