# -*- coding: utf-8 -*-
"""
No.429 CupShuffle
https://yukicoder.me/problems/no/429

"""
import sys
from sys import stdin
input = stdin.readline


def solve(N, f_shuffle, b_shuffle, res):
    # 1, 2, 3の状態からスタートして、? ?前までシャッフルする
    f_status = dict()
    for i in range(1, N+1):
        f_status[i] = i
    for a, b in f_shuffle:
        f_status[a], f_status[b] = f_status[b], f_status[a]

    # 最終状態からスタートして、一手ずつ戻す
    b_status = dict()
    for i, r in enumerate(res, start=1):
        b_status[i] = r
    for a, b in b_shuffle[::-1]: #  逆順
        b_status[a], b_status[b] = b_status[b], b_status[a]

    # ? ?の前後の状態で違う場所を探す
    ans = []
    for i in range(1, N+1):
        if f_status[i] != b_status[i]:
            ans.append(i)
            if len(ans) >= 2:
                break

    return ans


def main(args):
    N, K, X = map(int, input().split())
    f_shuffle = []              #  ? ?前までのシャッフル情報
    b_shuffle = []              #  ? ?後のシャッフル情報
    for _ in range(X-1):
        a, b = input().split()
        f_shuffle.append((int(a), int(b)))
    a, b = input().split()      #  ? ?は読み捨て
    for _ in range(X, K):
        a, b = input().split()
        b_shuffle.append((int(a), int(b)))

    res = [int(x) for x in input().split()] #  最終的なコップの状態

    ans = solve(N, f_shuffle, b_shuffle, res)
    print(*ans)


if __name__ == '__main__':
    main(sys.argv[1:])