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 main() {
  ios_base::sync_with_stdio(false);
  int n;
  scanf("%d", &n);
  vector<int> ans(10);
  vector<bool> fix(10);
  while (n--) {
    char ch;
    int a;
    cin >> ch;
    scanf("%d", &a);
    int i = 0;
    while (i < 10) {
      int bpos = a & 1;
      if (ch == '|') {
        if (bpos == 1) {
          ans[i] = bpos;
          fix[i] = true;
        }
      } else if (ch == '&') {
        if (bpos == 0) {
          ans[i] = bpos;
          fix[i] = true;
        }
      } else {
        if (bpos == 1) ans[i] = 1 - ans[i];
      }
      i++;
      a = a >> 1;
    }
  }
  int xorval = 0, andval = 1023, orval = 0, num = 1;
  for (int i = 0; i < 10; i++) {
    if (fix[i] == true) {
      if (ans[i] == 1)
        orval += num;
      else
        andval -= num;
    } else {
      if (ans[i] == 1) xorval += num;
    }
    num = num << 1;
  }
  printf("%d\n", 3);
  printf("%c %d\n", '&', andval);
  printf("%c %d\n", '|', orval);
  printf("%c %d\n", '^', xorval);
}
