#include <iostream>
using namespace std;

int main() {
    int n;
    scanf("%d", &n);
    for (int i = 0; i <= n; i++) {
        for (int j = 0; j < n - i; j++) 
        {
            printf(" ");
            printf(" ");
        }
        for (int k = 0; k <= i; k++)
        {
            printf("%d", k);
            printf(" ");
        }
        for(int m=i-1;m>=0;m--)
        {
                    printf("%d",m);
                    printf(" ");
        }
        printf("\n");
    }

        for(int j=n+1;j<2*n+1;j++){
            for (int i = 0;i<j-n;i++) {
                printf(" ");
                printf(" ");
            }
            for (int k=0;k<2*n-j+1;k++) {
                printf("%d", k);
                printf(" ");
            }
            for (int m = 2 * n - j-1; m >= 0; m--) {
                printf("%d", m);
                printf(" ");
            }

            printf("\n");
        }
    return 0;
}