import java.util.Scanner;

class Oct7 {
	public static void main(String[] args) {

		Scanner kb = new Scanner(System.in);
		System.out.print("Enter an integer: ");
		int length = kb.nextInt();


		for (int i = 0; i < length; i++) {

			for(int j = 0; j < length; j++) {

				if(i == 0 || i == length-1 || 
					j == 0 || j == length-1) {
					
					System.out.printf("X ");
					continue;
				}

				if (i == j) {
					System.out.printf("1 ");		
				}
				else {
					System.out.printf("0 ");
				}
			}
			System.out.println();

		}

	}
}