include <stdio.h>

int main() {

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

}