sorting of number

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace sorting

{

   class Program

   {

       static void Main(string[] args)

       {

           int[] arr;

           arr = new int[10];

           int i,temp,j;

           Console.WriteLine("enter the element");

           for (i = 1; i < 4; i++)

           {

               arr[i] = Int32.Parse(Console.ReadLine()

);

           }

           for (i = 1; i < 4; i++)

           {

               for (j = 1; j < 4-i;j++ )

                   if (arr[j] > arr[j+1])

                   {

                       temp=arr[j+1];

arr[j+1]=arr[j];

                       arr[j]=temp;

                   }

               }

                   for(i = 1; i < 4; i++)

               Console.WriteLine("array is " + arr[i]);

                           }

       }

}