N, K, X = map(int, input().split())

c = [i for i in range(1, N + 1)]

for i in range(X - 1):
    a, b = map(int, input().split())
    
    c[a - 1], c[b - 1] = c[b - 1], c[a - 1]

input()
d = c.copy()
for i in range(K - X):
    a, b = map(int, input().split())
    c[a - 1], c[b - 1] = c[b - 1], c[a - 1]

C = list(map(int, input().split()))
for i in range(N):
    if C[i] != c[i]:
        ans = [d.index(c[i]) + 1, d.index(C[i]) + 1]
        ans.sort()
        print(*ans)
        exit()