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>
#pragma GCC optimize("O3")
using namespace std;
const long long inf = numeric_limits<long long>::max() / 2;
const long double eps = 1e-9;
long long N;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> N;
  long long a = 1023, b = 0, c = 0;
  for (long long i = 0; i < N; i++) {
    char cm;
    long long r;
    cin >> cm >> r;
    if (cm == '&') {
      a = a & r;
    } else if (cm == '|') {
      b = b | r;
    } else if (cm == '^') {
      c = c ^ r;
    }
  }
  cout << 3 << endl;
  cout << "& " << a << endl;
  cout << "| " << b << endl;
  cout << "^ " << c << endl;
  return 0;
}
