9번

package JavaFestival;

import java.util.Scanner;

public class jar9 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.print("행 개수 : ");
		int a = sc.nextInt();
		
		for(int i=0; i<=a;i++) {
			for(int j=0;j<=i;j++) {
				System.out.println("*");
			}
			System.out.println();
		}
	}
}