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 ch[10];
int main(void) {
  int n, tmp;
  char st[5];
  scanf("%d", &n);
  for (int i = 0; i < n; i++) {
    scanf("%s%d", st, &tmp);
    int kase = 0;
    if (st[0] == '&')
      while (kase < 10) {
        if (!(tmp & 1)) ch[kase] = 2;
        kase++;
        tmp >>= 1;
      }
    if (st[0] == '|')
      while (tmp) {
        if (tmp & 1) ch[kase] = 3;
        kase++;
        tmp >>= 1;
      }
    if (st[0] == '^')
      while (tmp) {
        if (tmp & 1) ch[kase] ^= 1;
        kase++;
        tmp >>= 1;
      }
  }
  int ans1 = 0, ans2 = 1023, ans3 = 0;
  for (int i = 0; i < 10; i++) {
    if (ch[i] == 1) ans1 ^= 1 << i;
    if (ch[i] == 2) ans2 ^= 1 << i;
    if (ch[i] == 3) ans3 ^= 1 << i;
  }
  printf("3\n");
  printf("^ %d\n", ans1);
  printf("& %d\n", ans2);
  printf("| %d\n", ans3);
  return 0;
}
