import itertools
def make_perm(n):
  P = list(itertools.permutations([i + 1 for i in range(n)]))
  return P

N = int(input())
A = list(map(int,input().split()))
if N <= 4:
  P = make_perm(N)
  for p in P:
    x = 0
    for i in range(N):
      x ^= p[i] + A[i]
    for q in P:
      if p == q:
        continue
      y = 0
      for j in range(N):
        y ^= q[j] + A[j]
      if x == y:
        print(*p)
        print(*q)
        exit()
  print(-1)
  exit()

X = [[] for i in range(4)]
for i in range(N):
  X[A[i] % 4].append(i)

for i in range(4):
  if len(X[i]) >= 2:
    l,r = X[i][0],X[i][1]
    break
P = [-1 for i in range(N)]
P[l] = 1
P[r] = 2
n = 3
for i in range(N):
  if P[i] == -1:
    P[i] = n
    n += 1
print(*P)
P[l],P[r] = P[r],P[l]
print(*P)