N,K,X = map(int,input().split())
lsk = [i+1 for i in range(N)]
for i in range(K):
    if i == X-1:
        input()
        lsg = lsk[:]
        continue
    a,b = map(int,input().split())
    a -= 1
    b -= 1
    lsk[a],lsk[b] = lsk[b],lsk[a]
lsC = list(map(int,input().split()))
p = []
for i in range(N):
    if lsk[i] != lsC[i]:
        p.append(lsk[i])
ans = [lsg.index(p[0])+1,lsg.index(p[1])+1]
ans.sort()
print(*ans)