using System; public class Addition { public static void Main( string[] args ) { int number1; int number2; int sum; Console.Write( "Enter first integer: " ); number1 = Convert.ToInt32( Console.ReadLine() ); Console.Write( "Enter second integer: " ); number2 = Convert.ToInt32( Console.ReadLine() ); sum = number1 + number2; Console.WriteLine( "Sum is {0}", sum ); } }