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;
const int MAX = 40000000;
int main(void) {
  ios_base::sync_with_stdio(false);
  char c;
  int v[30];
  for (int i = 0; i < 30; i++) v[i] = -1;
  int n, x;
  cin >> n;
  while (n--) {
    cin >> c >> x;
    if (c == '|')
      for (int i = 0; i < 30; i++)
        if ((1 << i) & x) v[i] = 1;
    if (c == '&')
      for (int i = 0; i < 30; i++)
        if (((1 << i) & x) == 0) v[i] = 0;
    if (c == '^')
      for (int i = 0; i < 30; i++)
        if ((1 << i) & x) {
          if (v[i] == -1)
            v[i] = 2;
          else if (v[i] == 2)
            v[i] = -1;
          else
            v[i] ^= 1;
        }
  }
  cout << "3" << endl;
  int ans = 0;
  for (int i = 0; i < 30; i++)
    if (v[i] == 2) ans += 1 << i;
  cout << "^ " << ans << endl;
  ans = 0;
  for (int i = 0; i < 30; i++)
    if (v[i] != 0) ans += 1 << i;
  cout << "& " << ans << endl;
  ans = 0;
  for (int i = 0; i < 30; i++)
    if (v[i] == 1) ans += 1 << i;
  cout << "| " << ans << endl;
  return 0;
}
