1
& 0
 1
^ 123
 10
^ 218
& 150
| 935
& 61
| 588
& 897
| 411
| 584
^ 800
| 704
 3
& 1
& 3
& 5
 1
| 123
 1
^ 0
 1
| 1023
 3
& 242
^ 506
^ 522
 10
^ 160
& 1021
& 510
^ 470
& 1022
& 251
& 760
& 1016
| 772
| 515
 1
& 1023
 1
| 0
 2
| 56
^ 875
 1
^ 1023
 2
| 999
^ 689
 3
^ 125
^ 377
& 1019
 1
& 123

3
& 0
| 0
^ 0
 3
& 1023
| 0
^ 123
 3
& 763
| 763
^ 0
 3
& 1
| 0
^ 0
 3
& 1023
| 123
^ 0
 3
& 1023
| 0
^ 0
 3
& 1023
| 1023
^ 0
 3
& 1010
| 768
^ 240
 2
| 775
^ 112
 3
& 1023
| 0
^ 0
 3
& 1023
| 0
^ 0
 3
& 983
| 16
^ 835
 3
& 1023
| 0
^ 1023
 3
& 350
| 326
^ 16
 3
& 1019
| 0
^ 256
 3
& 123
| 0
^ 0

import java.util.*;

public class Darth9 {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        sc.nextLine();

        int a = 1023, b = 0;
        for (int i = 0; i < n; i++) {
            String str = sc.nextLine();
            if (str.equals("| 0")) continue;
            char op = str.split(" ")[0].charAt(0);
            int num = Integer.valueOf(str.split(" ")[1]);
            if (op == '|') {
                a |= num;
                b |= num;
            } else if (op == '^') {
                a ^= num;
                b ^= num;
            } else {
                a &= num;
                b &= num;
            }
        }

        System.out.println(3);
        System.out.println("| " + (a & b));
        System.out.println("& " + (a | b));
        System.out.println("^ " + ((1023 ^ a) & b));
    }
}