N = int(input())
ans = [[-1]*N for i in range(N)]

for i in range(N):
    x, y = i, i
    
    for j in range(N):
        ans[x][y] = i+1
        x = (x+1)%N
        y = (y-1)%N

for ans_i in ans:
    print(*ans_i)