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

z = 0
o = 1023
n = int(input())
for i in range(n):
    a,b = input().split()
    b = int(b)
    if(a == "&"):
        z = z&b
        o = o&b
    if (a == "^"):
        z = z ^ b
        o = o ^ b
    if (a == "&"):
        z = z | b
        o = o | b
z = '{:010b}'.format(z)
o = '{:010b}'.format(o)
an = 0
r = 0
xo = 0
pw = 512
for i in range(10):
    an+=pw
    if(o[i]=='0' and z[i] == '0'): an-=pw
    if (o[i] == '1' and z[i] == '1'): r+=pw
    if (o[i] == '0' and z[i] == '1'): xo+=pw
    pw//=2
print(3)
print("&",an)
print("|",r)
print("^",xo)



