Manmohanlovespatterns-1

#1

i am failing 1 of the testcase .Kindly see d code.
package krish;

import java.util.Scanner;

public class ManmohanlovesPattern1 {

public static void main(String[] args)
{
    int n;
	
	Scanner sc = new Scanner(System.in);
   
    n = sc.nextInt();
    if(n>=1&&n<=1000)
    {
    for(int i=1;i<=3;i++)
    {
    	for(int j=1;j<=i;j++)
    	{
    		if(i==1||i==2||i==3)
    		{
    			System.out.print(1);	
    			
    		}
    	}
    		System.out.println();
    	}		
    		for(int k=4;k<=n;k++)
    		{
    			for(int s=1;s<=k;s++)
    			{
    				if(k%2==0)
    				{
    					if(s==1||s==k)
    						System.out.print(1);
    					else
    						System.out.print(0);
    				}
    				else
    					System.out.print(1);
    						
    						
    				}
    			System.out.println();
  
    		}
    		}
    else
    	System.out.print("wrong choice");
}

}