n = int(input())
nom = [[0]*n for _ in range(n)]
for i in range(n):
    nom[-1][i] = (i+1)**2
for j in range(n-2,-1,-1):
    k = n-j-1
    for h in range(n):
        if k-1>=h:
            nom[j][h] = k**2+1+h
        else:
            nom[j][h]= nom[j+1][h]-1
for row in nom:
    print(''.join(f"{num:4}" for num in row))