N,K,X = map(int,input().split())
AB = [input().split() for i in range(K)]
C = input().split()
S = [str(i + 1) for i in range(N)]
for i in range(X-1):
	S[int(AB[i][0])-1],S[int(AB[i][1])-1] = S[int(AB[i][1])-1],S[int(AB[i][0])-1]
for i in range(K-1,X - 1,-1):
	C[int(AB[i][0])-1],C[int(AB[i][1])-1] = C[int(AB[i][1])-1],C[int(AB[i][0])-1]
ans=sorted([i+1 for i in range(N) if S[i] != C[i]])
print(ans[0],ans[1])