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.*;
import java.io.*;
import java.math.*;

public class Main {

    static Scanner input = new Scanner(new BufferedReader(new InputStreamReader(System.in)));

    public static void main(String[] args) {
        int n = input.nextInt();
        int argZERO = 0, argONE = 1023, arg;
        for (int i = 0; i < n; i++) {
            switch (input.next()) {
                case "|":
                    arg = input.nextInt();
                    argZERO |= arg;
                    argONE |= arg;
                    break;
                case "&":
                    arg = input.nextInt();
                    argZERO &= arg;
                    argONE &= arg;
                    break;
                case "^":
                    arg = input.nextInt();
                    argZERO ^= arg;
                    argONE ^= arg;
                    break;
            }
        }
        System.out.println(3);
        System.out.println("| " + (argONE & argZERO));
        System.out.println("& " + (argONE | argZERO));
        System.out.println("^ " + ((argONE ^ 1023) & (argZERO ^ 0)));
    }
}