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 N = 2e5 + 5;
int n, x, b[4], ct, u, y, used[4];
char ch;
vector<pair<char, int>> vec;
void rec(int id, int last) {
  if (vec.size() > 3) return;
  if (id == y) {
    cout << vec.size() << "\n";
    for (int i = 0; i < vec.size(); i++) {
      cout << vec[i].first << " " << vec[i].second << "\n";
    }
    exit(0);
  }
  for (int i = 1; i <= 3; i++) {
    if (used[i]) continue;
    if (!b[i]) continue;
    if (i == 1) {
      vec.push_back({'^', b[i]});
      used[i] = 1;
      rec(id ^ b[i], i);
      vec.pop_back();
      used[i] = 0;
    } else if (i == 2) {
      used[i] = 1;
      vec.push_back({'|', b[i]});
      rec(id | b[i], i);
      vec.pop_back();
      used[i] = 0;
    } else {
      used[i] = 1;
      vec.push_back({'&', b[i]});
      rec(id & b[i], i);
      vec.pop_back();
      used[i] = 0;
    }
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> n;
  y = (1 << 20);
  for (int i = 1; i <= n; i++) {
    cin >> ch >> x;
    if (ch == '^') {
      b[1] ^= x;
      y ^= x;
    } else if (ch == '|') {
      b[2] |= x;
      y |= x;
    } else {
      if (!u)
        b[3] = x;
      else
        b[3] &= x;
      u = 1;
      y &= x;
    }
  }
  rec((1 << 20), 0);
}
