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() {
  int n, m, k;
  cin >> n;
  int n1 = 0, n2 = 1023;
  for (int i = 0; i < n; ++i) {
    char c;
    int num;
    cin >> c >> num;
    if (c == '|') {
      n1 = n1 | num;
      n2 = n2 | num;
    }
    if (c == '^') {
      n1 = n1 ^ num;
      n2 = n2 ^ num;
    }
    if (c == '&') {
      n1 = n1 & num;
      n2 = n2 & num;
    }
  }
  int base = 1;
  int xorNum = 0;
  int andNum = 0;
  int orNum = 0;
  for (int i = 0; i < 10; ++i) {
    int r1 = base & n1;
    int r2 = base & n2;
    if (r1 == 0 && r2 == 0) {
      andNum += 0;
    }
    if (r1 == 0 && r2 >= 1) {
      andNum += base;
    }
    if (r1 >= 1 && r2 == 0) {
      xorNum += base;
      andNum += base;
    }
    if (r1 >= 1 && r2 >= 1) {
      orNum += base;
      andNum += base;
    }
    base *= 2;
  }
  cout << 3 << endl;
  cout << "| " << orNum << endl;
  cout << "^ " << xorNum << endl;
  cout << "& " << andNum << endl;
  return 0;
}
