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 n, b[20];
bool wie[20];
vector<int> x[20], a[20], o[20];
int co1[20], co2[20], co3[20];
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  cin >> n;
  for (int i = 1; i <= n; i++) {
    char c;
    int y;
    cin >> c >> y;
    if (c == '^') {
      for (int j = 0; j <= 11; j++) {
        if (y & (1 << j)) {
          x[j].push_back(1);
          if (wie[j]) b[j] ^= x[j].back();
        }
      }
    }
    if (c == '|') {
      for (int j = 0; j <= 11; j++) {
        if (y & (1 << j)) {
          wie[j] = 1;
          b[j] = 1;
          o[j].push_back(1);
        }
      }
    }
    if (c == '&') {
      for (int j = 0; j <= 11; j++) {
        if (!(y & (1 << j))) {
          wie[j] = 1;
          b[j] = 0;
          a[j].push_back(0);
        }
      }
    }
  }
  for (int i = 0; i < 10; i++) {
    if (wie[i]) {
      if (b[i] == 0) {
        co1[i] = 0;
        co2[i] = 0;
        co3[i] = 0;
      } else {
        co1[i] = 0;
        co2[i] = 1;
        co3[i] = 1;
      }
    } else {
      co1[i] = ((int)x[i].size()) % 2;
      co2[i] = 1;
      co3[i] = 0;
    }
  }
  cout << 3 << "\n";
  int p = 1, l = 0;
  for (int i = 0; i < 10; i++) {
    l += p * co1[i];
    p *= 2;
  }
  cout << "^ " << l << "\n";
  p = 1, l = 0;
  for (int i = 0; i < 10; i++) {
    l += p * co2[i];
    p *= 2;
  }
  cout << "& " << l << "\n";
  p = 1, l = 0;
  for (int i = 0; i < 10; i++) {
    l += p * co3[i];
    p *= 2;
  }
  cout << "| " << l << "\n";
  return 0;
}
