def main():
  S=open(0).read().rstrip("\n")
  assert(1<=len(S)<=3)
  for i in S:
    assert(ord("0")<=ord(i)<=ord("9"))
  N=int(S)
  assert(1<=N<=100)
  for i in range(N):
    for j in range(N):
      print((i+j)%N+1,end=" ")
    print()
  return

main()