import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

n = int(input())
a = list(map(int,input().split()))

if max(a) - min(a) >= n:
    print(-1)
    exit()
if len(set(a)) != n:
    x = [[] for i in range(max(a)+10)]
    for i in range(n):
        x[a[i]].append(i)

    p1 = list(range(1, n+1))
    p2 = list(range(1, n+1))

    for i in range(max(a)+10):
        if len(x[i]) >= 2:
            s,t = x[i][0], x[i][1]
            p2[t], p2[s] = p2[s], p2[t]
            break
else:
    a = [[a[i], i] for i in range(n)]
    p1 = [i for i in range(2, n+1)] + [1]
    p2 = [n] + [i for i in range(1, n)]
print(*p1)
print(*p2)