C# Program to subtract two numbers

Program

using System;
namespace subtract_two_numbers
{
	class SubtractTwoNumbers
	{
		static void Main(String[] args)
		{
			int a, b;
			Console.Write("Enter first number:\t");
			a = int.Parse(Console.ReadLine());
			Console.Write("Enter second number:\t");
			b = int.Parse(Console.ReadLine());
			int sub = a - b;
			Console.WriteLine("Difference of two numbers: " + sub);
		}
	}
}

Output

$ mcs SubtractTwoNumbers.cs 
$ mono SubtractTwoNumbers.exe 
Enter first number:	456
Enter second number:	23
Difference of two numbers: 433