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

a, b = 0, 1023
n=int(input())
for i in range(n):
    cmd = input()
    c, x = cmd.split()
    x = int(x)
    if c == "|":
        a, b = a | x, b | x
    elif c == "&":
        a, b = a & x, b & x
    else:
        a, b = a ^ x, b ^ x
x = 0
y = 1023
z = 0
for i in range(10):
    a_i = (a << i) & 1
    b_i = (b << i) & 1
    if a_i and b_i:
        x |= 1 << i
    if (not a_i) and (not b_i):
        y ^= 1 << i
    if a_i and (not b_i):
        z ^= 1 << i
print("3\n| {}\n& {}\n^ {}".format(x, y, z))