package main

import (
	"fmt"
)

func main() {
	var N int
	fmt.Scan(&N)
	z := make([][]int, N)
	for i := 0; i < N; i++ {
		z[i] = make([]int, N)
	}
	var row, col int
	row = N - 1
	col = N / 2
	z[row][col] = 1
	for i := 2; i <= N*N; i++ {
		if z[(row+1)%N][(col+1)%N] == 0 {
			row = (row + 1) % N
			col = (col + 1) % N
		} else {
			row = (row - 1 + N) % N
		}
		z[row][col] = i
	}
	for i := 0; i < N; i++ {
		for j := 0; j < N; j++ {
			fmt.Print(z[i][j], " ")
		}
		fmt.Println("")
	}
}