#!/usr/bin/env pypy3

import collections


def main():
    n, k, x = map(int, input().split())
    cups = list(range(n))
    after = collections.deque()
    for i in range(k):
        if i != x - 1:
            a, b = map(lambda c: int(c) - 1, input().split())
            if i < x - 1:
                cups[a], cups[b] = cups[b], cups[a]
            else:
                after.append((a, b))
        else:
            _ = input()
    final_cups = list(map(lambda c: int(c) - 1, input().split()))
    while after:
        a, b = after.pop()
        final_cups[a], final_cups[b] = final_cups[b], final_cups[a]
    ans = []
    for j in range(n):
        if cups[j] != final_cups[j]:
            ans.append(j + 1)
    print(*ans)


if __name__ == '__main__':
    main()