public class ComplexShapes {
	public static void main(String[] args) {
		//dotsNums();	
		mystery();		
	}
	
	/*
	Mapping complex patterns to loop counters
	....1
	...2
	..3
	.4
	5
	
	line	dots	line * -1	line * -1 + 5
	1		4		-1				4
	2		3		-2				3
	3		2		-3
	4		1
	5		0

	*/
	public static void dotsNums() {
		for (int line = 1; line <= 5; line++) {
			for (int i = 1; i <= line * -1 + 5; i++) {
				System.out.print(".");
			}
			System.out.println(line);
		}
	}
	
	/* What is printed by the following code? 
	*/
	public static void mystery() {
		for (int line = 1; line <= 5; line++) {
			for (int j = 1; j <= (-1 * line + 5); j++) {
				System.out.print(".");
			}
			for (int j = 1; j <= line; j++) {
				System.out.print(line);
			}
			System.out.println();
		}
	}
}