nums = list(map(int, input().split()))

n = nums.pop(0)
head = nums.pop(0)

chain = [head]
while len(nums) > 1:
    num = nums.pop(0)
    base = nums.pop(0)
    chain.insert(chain.index(base)+1, num)
k = nums.pop(0)
chain.pop(chain.index(k))
print(" ".join(map(str, chain)))