Thread: Loop into another loop

Hello I'm trying to do something -when the user has entered a value other than 1 or 2, that it prompts the user to try again until the user chooses 1 or 2 - once the user has been chosen 1 or 2 make another loop that will go back to the very beginning Here is the code I entered

 package Com.mkl;
 
import java.util.Scanner;
 
public class Salut{
 
	public static void main(String[] args) {
     Scanner lectureClavier=new Scanner(System.in);
     int str=0;
     char r=' ';
		do {
		do {
		  System.out.println("choisi 1 ou 2");
		  str=lectureClavier.nextInt();
		System.out.println("ressayee");
		 } while(str!= 1 && str!=2);
		 if (str==1 || str==2){
		  System.out.println("correct");
		  }
		 r= lectureClavier.nextLine().charAt(0);
		 System.out.println("aimerais vous revenir au début ? tapé O ou N");
      } while(r=='N') ;
 
		 }
 
	}

The second loop (do while) does not work