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

#include <bits/stdc++.h>
using namespace std;
int n;
int changed;
int answer1, answer2 = 1023;
int main() {
  cin >> n;
  int i;
  for (i = 0; i < n; i++) {
    char tp;
    cin >> tp;
    if (tp == '|') {
      int number;
      cin >> number;
      answer1 |= number;
      answer2 |= number;
      changed |= number;
    } else if (tp == '&') {
      int number;
      cin >> number;
      answer1 &= number;
      answer2 &= number;
      number = 1023 - number;
      changed |= number;
    } else {
      int number;
      cin >> number;
      answer1 ^= number;
      answer2 ^= number;
    }
  }
  int answer11 = 0;
  int answer22 = 0;
  int answer33 = 0;
  for (i = 0; i < 10; i++) {
    if ((answer1 & (1 << i)) && (answer2 & (1 << i))) {
      answer11 += 1 << i;
    } else {
      if ((answer1 & (1 << i)) && (!(answer2 & (1 << i)))) {
        answer33 += 1 << i;
        answer22 += 1 << i;
      }
      if ((!(answer1 & (1 << i))) && (answer2 & (1 << i))) {
        answer22 += 1 << i;
      }
    }
  }
  cout << 3 << endl;
  cout << "& " << answer22 << endl;
  cout << "| " << answer11 << endl;
  cout << "^ " << answer33 << endl;
  return 0;
}
