N = int(input())
A = [int(input()) for _ in range(N)]
if A[0] < N and A.count(A[0]) == N:
    print(-1)
    exit()
ans = [-1] * N
rem = []
for i in range(N):
    if A[i] == i:
        rem.append(i)
    else:
        ans[i] = i
NR = len(rem)
if NR == 1:
    rem.append(N-1)
    NR += 1
for i in range(NR):
    ans[rem[i]] = rem[(i+1)%NR]
for a in ans:
    print(a)