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 main() {
  int t, i, j, k, n;
  scanf("%d", &t);
  int s1 = 1023, s2 = 0, d;
  char c;
  while (t--) {
    getchar();
    scanf("%c%d", &c, &d);
    if (c == '|') {
      s1 |= d;
      s2 |= d;
    } else if (c == '&') {
      s1 &= d;
      s2 &= d;
    } else {
      s1 ^= d;
      s2 ^= d;
    }
  }
  int a1 = 0, a2 = 0, cc = 1;
  for (i = 0; i < 10; i++) {
    int x, y;
    x = s1 % 2;
    y = s2 % 2;
    s1 /= 2;
    s2 /= 2;
    if (x == 1 && y == 1) {
      a1 += cc;
    } else if (x == 0 && y == 0) {
      a1 += cc;
      a2 += cc;
    } else if (x == 0 && y == 1) {
      a2 += cc;
    }
    cc *= 2;
  }
  printf("2\n");
  printf("| %d\n", a1);
  printf("^ %d\n", a2);
  return 0;
}
