from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.readline

N = int(input())
X = [[0]*N for _ in range(N)]
for i in range(N):
    idx = (2*i)%N
    for j in range(N):
        
        jdx = (idx-j)%N
        X[jdx][i] = j+1
for x in X:
    print(*x)