N = int(input())

a = list(range(1, N+1))

ans = [[0 for n in range(N)] for m in range(N)]

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

for i in range(N):
	print(*ans[i])