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;
const int maxn = 5e5 + 10;
const int inf = 1e9;
int n, m, q, k, res[20][3], op[20][5], a[maxn], cnt = 1;
char second[maxn][5];
int main() {
  scanf("%d", &n);
  for (int i = 0; i < n; i++) {
    scanf("%s", second[i]);
    scanf("%d", &a[i]);
  }
  for (int i = 0; i < 10; i++) {
    int temp1 = cnt;
    int temp2 = 0;
    for (int j = 0; j < n; j++) {
      if (second[j][0] == '|') {
        temp1 |= a[j];
        temp2 |= a[j];
      }
      if (second[j][0] == '&') {
        temp1 &= a[j];
        temp2 &= a[j];
      }
      if (second[j][0] == '^') {
        temp1 ^= a[j];
        temp2 ^= a[j];
      }
    }
    temp1 >>= i;
    temp2 >>= i;
    res[i][1] = temp1 % 2;
    res[i][0] = temp2 % 2;
    cnt *= 2;
  }
  for (int i = 0; i < 10; i++) {
    if (res[i][1] == 1 && res[i][0] == 0) {
      op[i][0] = 1;
    } else if (res[i][1] == 1 && res[i][0] == 1) {
      op[i][0] = 1;
      op[i][1] = 1;
    } else if (res[i][1] == 0 && res[i][0] == 0) {
      op[i][0] = 0;
    } else {
      op[i][0] = 1;
      op[i][2] = 1;
    }
  }
  int x = 0, y = 0, z = 0;
  for (int i = 9; i >= 0; i--) {
    x *= 2;
    y *= 2;
    z *= 2;
    x += op[i][0];
    y += op[i][1];
    z += op[i][2];
  }
  printf("3\n");
  printf("& %d\n", x);
  printf("| %d\n", y);
  printf("^ %d\n", z);
  return 0;
}
