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())
AND = 1023
XOR = 0
OR = 0

ors = []
xors = []
ands = []

ops = []

for _ in xrange(n):
	op, num = raw_input().split()
	num = int(num)
	if op == '|':
		ors.append(num)
	elif op == '&':
		ands.append(num)
	elif op == '^':
		xors.append(num)

	ops.append((op, num))

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

for _ in xrange(cnt_parantheses):
	s += ")"

# print(eval(s))
# print(ops[0][0], eval(s))

print(1)
print("{0} {1}".format(ops[0][0], eval(s)))



# for x in ands:
# 	AND &= x
# for x in ors:
# 	OR |= x
# for x in xors:
# 	XOR ^= x

# ans = []
# if len(ors) > 0:
# 	ans.append("| {0}".format(OR))
# if len(ands) > 0:
# 	ans.append("& {0}".format(AND))
# if len(xors) > 0:
# 	ans.append("^ {0}".format(XOR))

# print len(ans)
# for s in ans:
# 	print(s)
