import java.util.*;
import java.io.*;
public class Main{
	public static void main(String args[]){
		ArrayList<Integer>list = new ArrayList<>();
		Scanner sc = new Scanner(System.in);
		int size = sc.nextInt();
		for(int i=0;i<size;i++){
			list.add(sc.nextInt());
		}
		for(int i=0;i<size;i++){
			System.out.print(list.get(i)+" ");
		}
		System.out.println();
		System.out.println("Before 2th index change"+list.get(2));
		list.set(2,99);
		System.out.println("After 2nd index changed"+list.get(2));
		list.add(2,47);
		for(int i=0;i<list.size();i++){
			System.out.print(list.get(i)+" ");
		}
	}
}

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NQo3CjgKMgo2Cjk=

5
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2
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