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;
template <class T>
struct rge {
  T b, e;
};
template <class T>
rge<T> range(T i, T j) {
  return rge<T>{i, j};
}
struct debug {
  template <class T>
  debug& operator<<(const T&) {
    return *this;
  }
};
using ll = long long;
template <typename T>
void min_self(T& a, T b) {
  a = min(a, b);
}
template <typename T>
void max_self(T& a, T b) {
  a = max(a, b);
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<pair<string, int>> ops(n);
  for (int i = 0; i < int(n); i++) {
    cin >> ops[i].first >> ops[i].second;
  }
  vector<int> output;
  for (int start : {0, 1023}) {
    int ans = start;
    for (int i = 0; i < int(n); i++) {
      string s = ops[i].first;
      int y = ops[i].second;
      if (s == "|") {
        ans |= y;
      } else if (s == "&") {
        ans &= y;
      } else {
        ans ^= y;
      }
    }
    output.push_back(ans);
  }
  debug() << "[ "
          << "output"
             ": "
          << (output) << " ] ";
  cout << 2 << endl;
  int a = 0, b = 0;
  for (int bit = 0; (1 << bit) < 1024; bit++) {
    if ((output[0] >> bit & 1) == 1 && (output[1] >> bit & 1) == 1) {
      a |= 1 << bit;
    } else if ((output[0] >> bit & 1) == 0 && (output[1] >> bit & 1) == 0) {
      a |= 1 << bit, b |= 1 << bit;
    } else if ((output[0] >> bit & 1) == 1 && (output[1] >> bit & 1) == 0) {
      b |= 1 << bit;
    } else {
    }
  }
  cout << "| " << a << endl << "^ " << b << endl;
}
