import java.util.*;
import java.lang.*;
import java.io.*;

public class Main
{
    public static void main (String[] args) throws java.lang.Exception
    {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int a[] = new int[n];
        for (int i = 0; i < n; i++) {
            a[i] = sc.nextInt();
        }
        FL(a, k);

    }

    public static void FL(int []a, int k) {
        boolean flag=false;
        int x=-1, y=-1;
        for (int i = 0; i < a.length; i++) {
            int ans = a[i] ^ k;
            if (ans == 0) {
                if(!flag){
                    flag=true;
                    x=i;
                }
                y=i;
            }

        }
        System.out.println(x+" "+y);


    }
}