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;
struct mystruct {
  long long v;
  mystruct *next;
};
int structcmp(const void *v1, const void *v2) {
  return ((mystruct *)v1)->v - ((mystruct *)v2)->v;
}
int intcmp(const void *v1, const void *v2) { return *(int *)v1 - *(int *)v2; }
long long minn(long long v1, long long v2) { return v1 < v2 ? v1 : v2; }
long long maxx(long long v1, long long v2) { return v1 > v2 ? v1 : v2; }
void getbit(int v0, int v1, int sft, int &t0, int &t1, int &t2) {
  int res = ((v0 >> sft) & 1) * 2 + ((v1 >> sft) & 1);
  switch (res) {
    case 0:
      t0 = 0;
      t1 = 0;
      t2 = 0;
      break;
    case 1:
      t0 = 0;
      t1 = 1;
      t2 = 0;
      break;
    case 2:
      t0 = 1;
      t1 = 1;
      t2 = 0;
      break;
    case 3:
      t0 = 0;
      t1 = 1;
      t2 = 1;
      break;
  }
}
int main() {
  int n;
  cin >> n;
  int i;
  int v0 = 0, v1 = 1023;
  for (i = 0; i < n; i++) {
    char op[10];
    int v;
    scanf("%s %d", op, &v);
    if (op[0] == '|') {
      v0 |= v;
      v1 |= v;
    } else if (op[0] == '^') {
      v0 ^= v;
      v1 ^= v;
    } else if (op[0] == '&') {
      v0 &= v;
      v1 &= v;
    } else {
      cout << "ERR" << endl;
    }
  }
  int ans0 = 0, ans1 = 0, ans2 = 0;
  for (i = 9; i >= 0; i--) {
    ans0 *= 2;
    ans1 *= 2;
    ans2 *= 2;
    int t0, t1, t2;
    getbit(v0, v1, i, t0, t1, t2);
    ans0 += t0;
    ans1 += t1;
    ans2 += t2;
  }
  cout << 3 << endl;
  cout << "^ " << ans0 << endl;
  cout << "& " << ans1 << endl;
  cout << "| " << ans2 << endl;
  return 0;
}
