#include <cstdio>
#include <iostream>
using namespace std;

int main() {
	int N, K, X;
	scanf("%d %d %d", &N, &K, &X);
	int cup[N];
	for (int i = 0; i < N; i++) {
		cup[i] = i + 1;
	}
	for (int i = 0; i < K; i++) {
		if (i != X - 1) {
			int A, B;
			scanf("%d %d", &A, &B);
			int t = cup[A - 1];
			cup[A - 1] = cup[B - 1];
			cup[B - 1] = t;
		} else {
			char C, D;
			cin.ignore();
			scanf("%c %c", &C, &D);
		}
	}
	int ans[2];
	int index = 0;
	for (int i = 0; i < N; i++) {
		int C;
		cin >> C;
		if (C != cup[i]) {
			ans[index++] = i;
		}
	}
	printf("%d %d\n", ans[0], ans[1]);
	return 0;
}