/*
	Kiev Goh
	307138733
	CS2011-1 F19

	Pattern Block 1

*/
	import java.util.Scanner;

	public class PatternBlock1 {
		public static void main(String[] args) {

		Scanner input = new Scanner(System.in);

		System.out.println("Enter block size (>2): ");
		int s = input.nextInt();

		if (s < 3) {
			System.out.println("Size must be at least 3");
			System.exit(0);
		}

		for (int x = 1; x <= s; x++) {
			for (int y = 1; y <= x; y++) {
				System.out.print(". ");
		}
			for (int z = s - x; z > 0; z--) {
				System.out.print("o ");
		}
			System.out.println("");
		}

	}
}