using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Swapnubers
{
class Program
{
static void Main(string[] args)
{
label:
try
{
int num1, num2, temp;
Console.Write("\n Enter the first number : ");
num1 = int.Parse(Console.ReadLine());
Console.Write("\n Enter the second number : ");
num2 = int.Parse(Console.ReadLine());
temp = num1;
num1 = num2;
num2 = temp;
Console.Write("\n after swaping : ");
Console.Write("\n first number : " + num1);
Console.Write("\n second number : " + num2);
}
catch (Exception)
{
Console.WriteLine("its not digits");
goto label;
}
Console.ReadKey();
}
}
}
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