#!/usr/bin/tcc -run
#include <stdlib.h>
#include <stdio.h>

#define For(V, A, B) for(int V = (A); V <= (B); V++)
#define Back(V, A, B) for(int V = (A); V >= (B); V--)

void row(int i)
{
	For (j, 1, 9 - i)
		putchar(' ');
	For (j, 1, i)
		putchar('0' + j);
	Back (j, i - 1, 1)
		putchar('0' + j);
	putchar('\n');
}

int main(void)
{
	For (i, 1, 9)
		row(i);
	Back (i, 8, 1)
		row(i);
	return 0;
}