import java.util.*;

public class Main {
    private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) throws Exception {
        int n = sc.nextInt();
        int k = sc.nextInt();
        int x = sc.nextInt();
        
        int[] ary = new int[n+1];
        int[] tmp = new int[n+1];
        
        for (int i = 0;i <= n;i++) {
            ary[i] = i;
        }
        
        for (int i = 0;i < k;i++) {
            String a = sc.next();
            String b = sc.next();
            if (a.equals("?")) {
                tmp = (int[]) ary.clone();
                continue;
            }
            swap(ary, a, b);
        }
        
        List<Integer> list = new ArrayList<>();
        for (int i = 1;i <= n;i++) {
            if (ary[i] != sc.nextInt()) list.add(ary[i]);
            if (list.size() == 2) break;
        }
        
        int[] ret = new int[3];
        for (int i = 1;i <= n;i++) {
            if (list.get(0) == tmp[i]) ret[1] = i;
            if (list.get(1) == tmp[i]) ret[2] = i;
        }
        
        Arrays.sort(ret);

        System.out.println(ret[1] + " " + ret[2]);
    }
    
    private static void swap(int[] ary, String a, String b) {
        int ai = Integer.parseInt(a);
        int bi = Integer.parseInt(b);
        int temp;
        temp = ary[ai];
        ary[ai] = ary[bi];
        ary[bi] = temp;
    }
}