import sys
input = sys.stdin.readline

N=int(input())

ANS=[[-1]*N for i in range(N)]

for i in range(N):
    for j in range(N):
        ANS[i][j]=i+1

ANS2=[[-1]*N for i in range(N)]

for i in range(N):
    for j in range(N):
        ANS2[i][j]=j+1

for ans in ANS:
    print(*ans)

for ans in ANS2:
    print(*ans)