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;
  cin >> n;
  int a, b;
  a = 1023;
  b = 0;
  int l = 10;
  for (int i = 0; i < n; ++i) {
    char c;
    int num;
    cin >> c >> num;
    if (c == '&') {
      a &= num;
      b &= num;
    } else if (c == '|') {
      a |= num;
      b |= num;
    } else {
      a ^= num;
      b ^= num;
    }
  }
  vector<int> v[4];
  for (int i = 0; i < 10; ++i) {
    int _a, _b;
    _a = a & 1;
    _b = b & 1;
    a >>= 1;
    b >>= 1;
    if (_a == 1 && _b == 0) {
      v[0].push_back(i);
    } else if (_a == 1 && _b == 1) {
      v[1].push_back(i);
    } else if (_a == 0 && _b == 0) {
      v[2].push_back(i);
    } else
      v[3].push_back(i);
  }
  int or_val = 0;
  for (int i = 0; i < v[1].size(); ++i) {
    or_val |= (1 << (v[1][i]));
  }
  int and_val = 1023;
  for (int i = 0; i < v[2].size(); ++i) {
    and_val -= (1 << v[2][i]);
  }
  int xor_val = 0;
  for (int i = 0; i < v[3].size(); ++i) {
    xor_val |= (1 << v[3][i]);
  }
  cout << 3 << endl;
  cout << "| " << or_val << endl;
  cout << "& " << and_val << endl;
  cout << "^ " << xor_val << endl;
  return 0;
}
