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

n = int(raw_input())
l = []
for i in xrange(n):
    l.append(raw_input().split())
ll = [0,1,2,4,8,16,32,64,128,256,512]
ans = []
#lll = str(bin(11))[2:].zfill(10)
final = []
for i in [0,1023]:
    temp = i
    for j in range(n):
        if l[j][0] == '|':
            temp = temp|int(l[j][1])
        elif l[j][0] == '&':
            temp = temp&int(l[j][1])
        elif l[j][0] == '^':
            temp = temp^int(l[j][1])
    
    final.append(temp)
xxor = []
aand = []
oor = []
kk = [1 if ll[j]&final[1] else 0 for j in range(1,11)]
zz = [int(i) for i in str(bin(final[0]))[2:].zfill(10)]

for i in xrange(10):
    if zz[9-i] == 1 and kk[i] == 1:
        oor.append('1')
        aand.append('1')
        xxor.append('0')
    if (zz[9-i] == 0) and (kk[i] == 0):
        oor.append('0')
        aand.append('0')
        xxor.append('0')
    #if zz[i] and not kk[i]:
    #    and.append(i)
    if ( zz[9-i] == 1) and (kk[i])== 0:
        oor.append('0')
        aand.append('1')
        xxor.append('1')
    if ( zz[9-i] == 0) and (kk[i])== 1:
        oor.append('0')
        aand.append('1')
        xxor.append('0')

xxor = ''.join(xxor)[::-1]
oor = ''.join(oor)[::-1]
aand = ''.join(aand)[::-1]


print '3' #+ '\n'
print '| ' + str(int(oor,2)) #+ '\n'
print '^ ' + str(int(xxor,2)) #+ '\n'
print '& ' + str(int(aand,2)) #+ '\n'