li1 = list(map(int, input().split()))
li2 = list(map(int, input().split()))
even, odd = [], []
sl1 = sum(li1)
sl2 = sum(li2)
 
for i in li1:
	for j in li2:
		if sl1 - i + j == sl2 - j + i:
			if (i*j)%2 == 0: 
				even.append([i, j, i*j])
			else:
				odd.append([i, j, i*j])
 
even = sorted(list(even), key = lambda x : x[2])
odd = sorted(list(odd),  key = lambda x : -x[2])
 
ans = []
for x in even:
	ans.append(x[0])
	ans.append(x[1])
for x in odd:
	ans.append(x[0])
	ans.append(x[1])
if len(ans) == 0:
	print (-1)
	exit()
print (' '.join([str(i) for i in ans]))

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MjUgMzAgMQo0IDI=

25 30 1
4 2