import java.util.Scanner;
    //Player recognizable; Wrong number protection
    public class Practive{	
    	public static void main(String[] args){
    		int remain = 21;
    		Scanner scan = new Scanner(System.in);
    		System.out.println("The rules of this game are simple. You start with 21 sticks, and two players take turns");
    		System.out.println("either taking one or two sticks. The player who takes the last stick loses.");
    		System.out.println();
     
    		while (remain > 0){
    			System.out.println("Player A's turn: take 1 or 2 sticks. The number of reamining sticks is "+remain);
    			int inputA = scan.nextInt();	
    			if (inputA >=2)
    			{
    				inputA = 2;
    			}
    			else if (inputA <=1)
    			{
    				inputA = 1;
    			}
    			remain = remain-inputA;
    			if (remain == 0){
    				System.out.println ("You lose.");
     
    			}
    			else {
    				System.out.println("Player B's turn: take 1 or 2 sticks. The number of reamining sticks is "+remain);
    			int inputB = scan.nextInt();
    			remain = remain-inputB;				
    			if (remain ==0){
    				System.out.println ("You lose");
    			}
    		}
    		if ( remain ==0){
    			System.out.println("Game is over");
    		}
    		}
     
     
     
    	}
    }