C# program to take a number as input and calculate the square of that number

Following program shows how to take a number as input and calculate the square of that number.
In this program we get input from user and prints square of that number using following formula
Square of number = input X input

using System;

class MainClass {
  public static void Main (string[] args) {
     Console.WriteLine("Please enter a number:");
    int input = Convert.ToInt32(Console.ReadLine());
    int result = input * input;
        Console.WriteLine("Squre of " + input + " is: " + result);
  }
}

Output:

Please enter a number:
 4
Squre of 4 is: 16