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())
z, o = 0, 1023
for _ in xrange(n):
	op, num = raw_input().split()
	num = int(num)
	z, o = eval("{0} {1} {2}".format(z, op, num)), eval("{0} {1} {2}".format(o, op, num))

n2, n3, n4 = 0, 0, 1023
for i in xrange(10):
	x = (1 << i)
	q = z & x
	w = o & x
	if q and (not w) == 0:
		n2 |= x
	elif q and w:
		n3 |= x
	elif (not q) and (not w):
		n4 &= ~x

print(3)
print("^ " + str(n2))
print("| " + str(n3))
print("& " + str(n4))
