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())
ops = []

for _ in xrange(n):
	op, num = raw_input().split()
	ops.append((op, num))

s = ""
for i in xrange(len(ops)):
	s += "{0} {1} ".format(ops[i][0], ops[i][1])

def sss(st, stt):
	return "{0} {1}".format(st, stt)

res0 = [0 for i in xrange(10)]
res1 = [0 for i in xrange(10)]
for i in xrange(10):
	inp = 0
	resz = 1 if ((eval(sss(inp, s)) & (1 << i)) > 0) else 0
	res0[i] = resz

	inp = 1 << i
	reso = 1 if ((eval(sss(inp, s)) & (1 << i)) > 0) else 0
	res1[i] = reso


g1 = " ^ 0"
g2 = " ^ 1"
g3 = " | 1"
g4 = " & 0"
gates = [0 for i in xrange(10)]
for i in xrange(10):
	if res0[i] == 0 and res1[i] == 1:
		gates[i] = g1
	elif res0[i] == 1 and res1[i] == 0:
		gates[i] = g2
	elif res0[i] == 1 and res1[i] == 1:
		gates[i] = g3
	else:
		gates[i] = g4

n2 = 0
n3 = 0
n4 = 0
qq = "1" * 10
for i in xrange(10):
	if gates[i] == g2:
		n2 = n2 << i
	if gates[i] == g3:
		n3 = n3 << i
	if gates[i] == g4:
		qq[i] = 0

n4 = int(qq, 2)

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