#!/usr/bin/python3
import fileinput
from functools import cmp_to_key

# Return 1 if the lists are in the right oder,
#       -1 if the lists are in the wrong order,
#        0 if we cannot decide in ths current pass.
def ordered(L, R):
	for i in range(0, len(L)):
		if i >= len(R):
			return -1
		if type(L[i]) is int and type(R[i]) is int:
			if L[i] < R[i]:
				return 1
			elif L[i] > R[i]:
				return -1
		elif type(L[i]) is list and type(R[i]) is list:
			j = ordered(L[i], R[i])
			if j != 0:
				return j
		elif type(L[i]) is list:
			j = ordered(L[i], [R[i]])
			if j != 0:
				return j
		elif type(R[i]) is list:
			j = ordered([L[i]], R[i])
			if j != 0:
				return j

	# If we reach this spot, we ran out of items in the left list.
	if len(L) == len(R):
		return 0
	return 1

packets = [ [[2]], [[6]] ]

for line in fileinput.input():
	if line.rstrip() == '':
		continue
	packets.append(eval(line.rstrip()))

# Apparently our cmp function is backwards.  The python documentation is
# really BAD at explaining how to use custom cmp functions!
packets.sort(key=cmp_to_key(ordered), reverse=True)
# print('\n'.join([str(i) for i in packets]))

product = 1
for i in range(0, len(packets)):
	if packets[i] == [[2]] or packets[i] == [[6]]:
		product *= i+1
print(product)