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 a[] = {0, 1023};
int b[5];
int main() {
  int n, m;
  char c;
  scanf("%d", &n);
  getchar();
  b[0] = 0;
  b[1] = 0;
  b[2] = 0;
  for (int i = 0; i < n; i++) {
    scanf("%c %d", &c, &m);
    getchar();
    if (c == '&') {
      for (int j = 0; j < 2; j++) {
        a[j] &= m;
      }
    }
    if (c == '|') {
      for (int j = 0; j < 2; j++) {
        a[j] |= m;
      }
    }
    if (c == '^') {
      for (int j = 0; j < 2; j++) {
        a[j] ^= m;
      }
    }
  }
  int w = 1;
  for (int i = 0; i < 10; i++) {
    int p = a[0] % 2;
    a[0] /= 2;
    int q = a[1] % 2;
    a[1] /= 2;
    if (p == 0 && q == 1) {
      b[0] += 1 * w;
      b[1] += 0 * w;
      b[2] += 0 * w;
    }
    if (p == 1 && q == 0) {
      b[0] += 1 * w;
      b[1] += 0 * w;
      b[2] += 1 * w;
    }
    if (p == 0 && q == 0) {
      b[0] += 0 * w;
      b[1] += 0 * w;
      b[2] += 0 * w;
    }
    if (p == 1 && q == 1) {
      b[0] += 1 * w;
      b[1] += 0 * w;
      b[2] += 0 * w;
    }
    w *= 2;
  }
  printf("3\n");
  printf("& %d\n", b[0]);
  printf("| %d\n", b[1]);
  printf("^ %d\n", b[2]);
  return 0;
}
