URI ONLINE JUDGE 1435

URI ONLINE JUDGE 1435

#include <stdio.h>
 
int main() {
 //URI ONLINE JUDGE 1435
    int n, i, j, x, y;
	for (;;)
	{
		scanf("%d", &n);
		if (n == 0)break;
		for (i = 1;i <= n;++i)
		{
			for (j = 1;j <= n;++j)
			{
				x = i;
				y = j;
				if (x > n / 2)
					x = n - i + 1;
				if (y > n / 2)
					y = n - y + 1;
				printf("%3d ", (x > y ? y : x));
			}
			printf("\n");
		}
		printf("\n");
	}
 
    return 0;
}