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.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author khokharnikunj8
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        ScanReader in = new ScanReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskC solver = new TaskC();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskC {
        public void solve(int testNumber, ScanReader in, PrintWriter out) {
            try {
                BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
                int n = Integer.parseInt(br.readLine());
                int num = 1023, num1 = 0, temp;
                String s;
                for (int i = 0; i < n; i++) {
                    s = br.readLine();

                    if (s.charAt(0) == '|') {
                        temp = Integer.parseInt(s.substring(2));
                        num |= temp;
                        num1 |= temp;
                    } else if (s.charAt(0) == '^') {
                        temp = Integer.parseInt(s.substring(2));
                        num ^= temp;
                        num1 ^= temp;
                    } else {
                        temp = Integer.parseInt(s.substring(2));
                        num &= temp;
                        num1 &= temp;
                    }
                }
                int a = 0, b = 0, c = 0, calc, ya, yb;
                for (int i = 0; i < 10; i++) {
                    calc = (1 << i);
                    ya = (calc & num);
                    yb = (calc & num1);
                    if (ya == 1 && yb == 1) a += (calc);
                    else if (ya == 0 && yb == 1) b += (calc);
                    else if (ya == 0 && b == 0) c += (calc);
                }
                out.println(3);
                out.println("| " + a);
                out.println("^ " + b);
                out.println("& " + c);
            } catch (Exception e) {
                e.printStackTrace();
            }


        }

    }

    static class ScanReader {
        private BufferedInputStream in;

        public ScanReader(InputStream inputStream) {
            in = new BufferedInputStream(inputStream);
        }

    }
}

