using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter a number to get sum from 1 to your number.");

        Console.WriteLine("1 + 2 + 3 ........ + n");

        Console.WriteLine("1^2 + 2^2 + 3^2 ......... + n^2");

        Console.WriteLine("1^3 + 2^3 ........... n^3");

        int nomnom = Int32.Parse(Console.ReadLine());

        int normal = (nomnom * (nomnom + 1)) / 2;

        int sqrt = (nomnom * (nomnom + 1) * (2* nomnom + 1)) / 6;

        int cube = normal * normal;

        Console.WriteLine("The sum of number from 1 to your number is " + normal + ".");

        Console.WriteLine("The sum of square of number from 1^2 to your number is " + sqrt + ".");

        Console.WriteLine("The sum of cube of number from 1^3 to your number is " + cube +".");

    }

}