N = int(input())
L = [["   " for y in range(N)] for x in range(N)]
l = 0
e = 0
while l < N//2:
    a = e
    b = N-1-l*2
    for i in range(N-1-l*2):
        L[l][l+i]         = str(a+b*0+1+i).rjust(3, '0')
        L[l+i][N-1-l]     = str(a+b*1+1+i).rjust(3, '0')
        L[N-1-l][N-1-l-i] = str(a+b*2+1+i).rjust(3, '0')
        L[N-1-l-i][l]     = str(a+b*3+1+i).rjust(3, '0')
        e = a+b*3+1+i
    l += 1
if N%2>0 : L[l][l] = str(N*N).rjust(3, '0')
for i in range(N) : print(" ".join(L[i]))