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>
int main() {
  int n;
  scanf("%d", &n);
  char out;
  int cur;
  if (n < 5) {
    printf("%d\n", n);
    while (scanf(" %c %d", &out, &cur) == 2) printf("%c %d\n", out, cur);
  } else {
    scanf("%c %d", &out, &cur);
    for (int i = 1; i < n; i++) {
      char ord;
      int otr;
      scanf(" %c %d", &ord, &otr);
      if (n - i == 5)
        printf("5\n%c %d\n", out, cur);
      else if (n - i <= 4)
        printf("%c %d\n", ord, otr);
      else {
        if (ord == '|')
          cur |= otr;
        else if (ord == '^')
          cur ^= otr;
        else
          cur &= otr;
      }
    }
  }
  return 0;
}
