public static void Main()
Console.WriteLine("Please input value 1");
int number1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Please input value 2");
int number2 = Convert.ToInt32(Console.ReadLine());
number1 = number1 + number2;
number2 = number1 - number2;
number1 = number1 - number2;
Console.WriteLine("Number 1 is: "+number1+" and number 2 is "+number2);
Console.WriteLine("Number 1 is: "+number1+" and number 2 is "+number2);