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

#define n 9
int main()
{
	int A[n][n] = { 0 };
	int k = 1;
	int d = 0;

	while (k <= n*n)
	{
		for (int i = d; i < n - d; ++i)
		{
			A[d][i] = k++;
		}
		for (int i = d + 1; i < n - d - 1; ++i)
		{
			A[i][n - 1 - d] = k++;
		}
		for (int i = n - 1 - d; i > 0 + d; --i)
		{
			A[n - 1 - d][i] = k++;
		}
		for (int i = n - 1 - d; i > 0 + d; --i)
		{
			A[i][d] = k++;
		}
		d++;
	}

	for (int i = 0; i < n; ++i)
	{
		for (int j = 0; j < n; ++j)
		{
			printf("%3d", A[i][j]);
		}
		printf("\n");
	}
	printf("\n\n");
	system("pause");
	return 0;
}