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 long double EPS = 1e-8;
const long double PI = acosl(-1.0);
int what[20][2];
vector<pair<int, int> > ans;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  for (int i = 0; i < 10; i++) {
    what[i][0] = 0;
    what[i][1] = 1;
  }
  int n;
  cin >> n;
  for (int i = 0; i < n; i++) {
    char c;
    int x;
    cin >> c >> x;
    if (c == '&') {
      for (int j = 0; j < 10; j++) {
        what[j][0] &= ((x >> j) & 1);
        what[j][1] &= ((x >> j) & 1);
      }
    }
    if (c == '|') {
      for (int j = 0; j < 10; j++) {
        what[j][0] |= ((x >> j) & 1);
        what[j][1] |= ((x >> j) & 1);
      }
    }
    if (c == '^') {
      for (int j = 0; j < 10; j++) {
        what[j][0] ^= ((x >> j) & 1);
        what[j][1] ^= ((x >> j) & 1);
      }
    }
    for (int j = 0; j < 10; j++) {
      cerr << what[j][0] << ' ' << what[j][1] << endl;
    }
    cerr << endl;
  }
  int x = 0;
  for (int j = 0; j < 10; j++) {
    cerr << what[j][0] << ' ' << what[j][1] << endl;
    if (!what[j][0] && !what[j][1]) x |= (1 << j);
  }
  if (x) {
    ans.push_back({0, x});
    ans.push_back({1, 0});
  }
  x = 0;
  for (int j = 0; j < 10; j++) {
    if (what[j][0] && what[j][1]) x |= (1 << j);
  }
  if (x) ans.push_back({0, x});
  x = 0;
  for (int j = 0; j < 10; j++) {
    if (what[j][0] == 1 && what[j][1] == 0) x |= (1 << j);
  }
  if (x) ans.push_back({1, x});
  cout << ans.size() << endl;
  for (int i = 0; i < (int)ans.size(); i++) {
    if (ans[i].first)
      cout << '^';
    else
      cout << '|';
    cout << " " << ans[i].second << endl;
  }
  return 0;
}
