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

import sys
input=sys.stdin.readline
n=int(input())
start1=0
start2=1023
for _ in range(n):
  a,b=map(str,input().split())
  b=int(b)
  if a=='|':
    start1=b|start1
    start2=b|start2
  elif a=='^':
    start1=b^start1
    start2=b^start2
  else:
    start1=b&start1
    start2=b&start2
ans=[]
ands=1023
xors=0
ors=0
for i in range(10):
  k=1<<i
  if start1&k and start2&k:
    ors+=k
  elif start1&k and not start2&k:
    xors+=k
  elif (not start1&k) and (not start2&k):
    ands-=k
print(3)
print('&',ands)
print('^',xors)
print('|',ors)