N=int(input())
#A=[[0]*N]*N
A=[[0 for _ in range(N)] for _ in range(N)] 

def swirl(c,A,N):
    for j in range(N):
        A[i][j+i]=c
        c+=1
    
    A=[list(d) for d in list(zip(*A))[::-1]]# ccw rotation
    for j in range(1,N):
        A[i][j+i]=c
        c+=1
        
    A=[list(d) for d in list(zip(*A))[::-1]]# ccw rotation
    for j in range(1,N):
        A[i][j+i]=c
        c+=1
        
    A=[list(d) for d in list(zip(*A))[::-1]]
    for j in range(1,N-1):
        A[i][j+i]=c
        c+=1
    A=[list(d) for d in list(zip(*A))[::-1]]
    return A


c=0
i=0
M=N
while c<=N*N:
    A=swirl(c,A,M)
    i+=1
    c+=(N-1)*4
    M-=2
#C=list(zip(*A))
for a in A:
    for x in a:
        print('%03d'%(x+1),end=' ')
    print()