// editor5
#include <stdio.h>
#include <stdlib.h>

int main() {
    int n;
    printf("Enter an integer (n): ");
    scanf("%d", &n);
    
    if (n < 0) {
        printf("Invalid Input\n");
        return 1;
    }
    
    for (int i = n; i >= 1; i--) {
        for (int j = n; j >= i; j-- {
            printf("%d", j);
        }
        for (int j = i + 1; j <= n; j++) {
            printf("%d", j);
        }
        printf("\n");
    
    
    for (int i = 2; i <= n; i++) {
        for (int j = n; j >= i; j--) {
            printf("%d", j);
        }
        for (int j = i + 1; j <= n; j++) {
            printf("%d", j);
        }
        printf("\n");
    }

    return 0;