N = int(input())
i, j = 0, -1
ans = [['0'] * (N) for _ in range(N)]
vec = [
    (0, 1),
    (1, 0),
    (0, -1),
    (-1, 0)
]
cur = 0

def tashi(t1, t2):
    return (t1[0] + t2[0], t1[1] + t2[1])

def check(i, j):
    return 0 <= i < N and 0 <= j < N

for s in range(1, N*N + 1):
    # str(i).zfill(3)
    ni, nj = tashi((i, j), vec[cur])
    
    if not check(ni, nj) or ans[ni][nj] != '0':
        cur += 1
        cur %= 4
        ni, nj = tashi((i, j), vec[cur])

    ans[ni][nj] = str(s).zfill(3)

    i, j = ni, nj

for a in ans:
    print(*a)