using System;

public class Program

{

    public static void Main()

    {

        int [] a={1 ,2,3,4,5};

        int place,val;

        Console.Write("Enter the numeric position you want to change.:");

        place=Convert.ToInt32(Console.ReadLine());

        place=place-1;

        Console.WriteLine("Enter the replacement value: ");

        val=Convert.ToInt32(Console.ReadLine());

        a[place]=val;

        for(int i=0;i<5;i++){

            Console.Write(a[i]+" ");}

    }

}