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



void spiral_fill(int grid[10][10], int n) {
    // TODO: implement this function
}


int main(void) {
    int n;
    if (scanf("%d", &n) != 1) { n = 0; }
    int grid[10][10];
    spiral_fill(grid, n);
    for (int r = 0; r < n; r++) {
        for (int c = 0; c < n; c++) {
            printf("%d", grid[r][c]);
            if (c < n - 1) { printf(" "); }
        }
        printf("\n");
    }
    return 0;
}