230221

n = int(input())

data = []

for i in range(n*n):
    v = [0] * (n*n)
    data.append(v)

x = 0
y = int(n//2)
k = 1
data[x][y] = k
k += 1

p = n*n-1
for i in range(n*n-1):
    x -= 1
    y += 1
    if x < 0:
        x = n-1
    if y >= n:
        y = 0
    data[x][y] = k
    k += 1
    if k > n*n:
        break
    if (k-1) % n == 0:
        x += 1
        data[x][y] = k
        k += 1

for i in range(n):
    for j in range(n):
        print(data[i][j], end=' ')
    print()