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

//  package mainpackage;

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

public class Main {
	public static void main(String... args) throws Exception {
		
		out = new PrintWriter(System.out);
		new Main().solve();
		out.close();
	}

	private static PrintWriter out;
	
	private BufferedReader reader;
	private StringTokenizer st;
	
	private int n, x1, x2;
	private char op, curOp;
	
	private void solve() throws Exception {
		
		reader = new BufferedReader(new InputStreamReader(System.in));
		
		n = Integer.parseInt(reader.readLine());
		
		st = new StringTokenizer(reader.readLine());
		op = st.nextToken().charAt(0);
		x1 = Integer.parseInt(st.nextToken());
		
		for (int i = 0; i < n - 1; ++i) {
			
			st = new StringTokenizer(reader.readLine());
			curOp = st.nextToken().charAt(0);
			x2 = Integer.parseInt(st.nextToken());
			
			if (curOp == '|') {
				x1 = x1 | x2;
			} else if (curOp == '^') {
				x1 = x1 ^ x2;
			} else {
				x1 = x1 & x2;
			}
		}
		
		reader.close();
		
		out.println(1);
		out.println(op + " " + x1);
	}
}
