// 功能：打印金字塔

public class Demo1{
	public static void main (String []args){
		int lay=6;

		for (int i=1;i<=lay ;i++ )
			{
			//打印空格
			for (int k=lay;k>=i ;k-- )
			{
				System.out.print(" ");
			}


			// 打印*
			for (int j = 1;j<=(i-1)*2+1 ;j++ )
			{
				if(i==1||i==lay)
				{
				    System.out.print("*");
				}
				else
				{
					if (j==1||j==(i-1)*2+1)
					{
						System.out.print("*");
					}
					else 
					{
						System.out.print(" ");
					}
				}
			}
			System.out.println();
		}
	}
}