N = int(input())
perm = [i + 1 for i in range(N)]

def issquare(n):
  return n ** (1/2) == int(n ** (1/2))

for i in range(N):
  for j in range(N - 1, i, -1):
    if perm[i] < perm[j]:
      if issquare(perm[j] * (i + 1)):
        perm[i], perm[j] = perm[j], perm[i]
        break

print(perm)