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

def inv(x): return x ^ 1023

n = int(raw_input())

x = 0
zeros, ones = 0, 1023
for i in range(n):
    cmd = raw_input().rstrip().split()
    op, val = cmd[0], int(cmd[1])
    if op == "&":
        zeros &= val
        ones &= val
    elif op[0] == "|":
        zeros |= val
        ones |= val
    elif op[0] == "^":
        zeros ^= val
        ones ^= val

set_one = zeros & ones
set_zero = inv(zeros) & inv(ones)
negate = zeros & inv(ones)

print "3"
print "| " + str(set_one)
print "& " + str(inv(set_zero))
print "^ " + str(negate)