Cacher is the code snippet organizer for pro developers

import java.util.*;  
  
public class Main {  
  
    public static void main(String[] args) {  
        Scanner scn = new Scanner(System.in);  
        int T=scn.nextInt();
        while(T--!=0){
        	int s=scn.nextInt(),n=scn.nextInt();
        	if(n==1){
        		for(int i=s-1;i>=0;i--){
        			for(int j=0;j<s;j++){
        				if(j!=0)
        					System.out.print(" ");
        				if(j==i)
        					System.out.print("*");
        				else
        					System.out.print("x");
        			}
        			System.out.println();
        		}
        	}else if(n==2){
        		for(int i=0;i<s;i++){
        			for(int j=0;j<s;j++){
        				if(j!=0)
        					System.out.print(" ");
        				if(j==i)
        					System.out.print("*");
        				else
        					System.out.print("x");
        			}
        			System.out.println();
        		}
        	}else if(n==3){
        		for(int i=s-1;i>=0;i--){
        			for(int j=0;j<s;j++){
        				if(j!=0)
        					System.out.print(" ");
        				if(j==s-1)
        					System.out.print("*");
        				else
        					System.out.print("x");
        			}
        			System.out.println();
        		}
        	}
        	else if(n==4){
        		for(int i=s-1;i>=0;i--){
        			for(int j=0;j<s;j++){
        				if(j!=0)
        					System.out.print(" ");
        				if(j==0)
        					System.out.print("*");
        				else
        					System.out.print("x");
        			}
        			System.out.println();
        		}
        	}
        }
    }  
}