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>
# define mp make_pair
# define pb push_back
# define s second
# define f first
# define int long long
using namespace std;

const int Inf = 1e9 + 7;
const int MaxN = 1e5 + 1;
int ans,ans2 = 1023;
main(){
    int n;
    cin >> n;
    for(int i = 1;i <= n;i ++){
        char x;
        int y;
        cin >> x >> y;
        if(x == '^') ans ^= y, ans2 ^= y;
        else if(x == '|') ans |= y, ans2 |= y;
        else if(x == '&') ans &= y, ans2 &= y;
    }
    puts("2");
    //cout << ans << ' ' << ans2 << endl;
    cout << '|' <<' '<< (ans^(ans2^1023))<< endl;
    cout << '&' <<' '<<  (ans2 ^ 1023 )<< endl;
}
