团体程序设计天梯赛-练习集 L1-002 打印沙漏 (20 分)

import java.util.Scanner;
public class Main
{
	public static void main(String[] args)
	{
		Scanner in=new Scanner(System.in);
		int a[]= {1,7,17,31,49,71,97,127,161,199,241,287,337,391,449,511,
				577,647,721,799,881,967,1057,1151};
		while(in.hasNext())
		{
			int n=in.nextInt();
			String x=in.next();
			int w=0;
			for(int i=0;i0;j--)
				{
					System.out.print(x);
				}
				System.out.println();
			}
				
			for(int i=2;i0;j--)
				{
					System.out.print(" ");
				}
				for(int j=2*i-1;j>0;j--)
				{
					System.out.print(x);
				}
				System.out.println();
			}
			System.out.println(n-a[w-1]);
		}
	}
}