20230303

# homework

# #Q 1420

# n = int(input())

# namelist=[]

# numberlist=[]

# orderednumbers=[]

#

# for i in range(1, n+1):

# name, number = input().split()

# name=str(name)

# number = int(number)

# namelist.append(name)

# numberlist.append(number)

# orderednumbers.append(number)

#

# orderednumbers.sort(reverse=True)

# thirdnumber=numberlist.index(orderednumbers[2])

# thirdname=namelist[thirdnumber]

# print(thirdname)

#

# Q1440

# n = int(input())

# allnumbers = list(map(int, input().split()))

#

# for i in range(n):

# a = allnumbers[i]

# print(i + 1, ": ", end='')

# for j in range(n):

# b = allnumbers[j]

# if a > b:

# print(">", end=' ')

# elif a < b:

# print("<", end=' ')

# elif a == b:

# print("=", end=' ')

# print()

#

# daywork

#

# Q4011 first ver

# firsthalf, secondhalf = list(input().split('-')) # not integer = counted as words list

# year = firsthalf[0:2] # list[n:m] = list content from (n to m-1)

# month = firsthalf[2:4]

# day = firsthalf[4:6]

# gender = secondhalf[0]

# if gender == '1': # because list is words (not integer), use 'number' to find.

# print("19", year, "/", month, "/", day, " M", sep='')

# elif gender == '2':

# print("19", year, "/", month, "/", day, " F", sep='')

# elif gender == '3':

# print("20", year, "/", month, "/", day, " M", sep='')

# elif gender == '4':

# print("20", year, "/", month, "/", day, " F", sep='')

#

# Q 4011 second ver (teacher-written, uses map and integer instead of treating as words list)

# first, second = map(int, input().split('-'))

# year = first // 10000

# month = first % 10000 // 100

# day = first % 100

# gender = second / 1000000

# if gender == 1:

# print('19', year, '/')

#

# '''

# # x = 123456789

# # print(x//10)

# # print(x%10)

# #

# # print(x//100)

# # print(x%100)

# '''

#

# #Q 4016

# a, b, c = input().split()

# a = int(a)

# b = int(b)

# c = int(c)

# d = 0

# for i in range(1, 100001):

# if (a % i == 0) and (b % i == 0) and (c % i == 0):

# d = i

#

# print(d)

#

# # Q 4021

# numbers = list(map(int, input().split()))

# z = 0

# for i in range(7):

# if numbers[i]%2 == 1:

# z += numbers[i]

# if z != 0:

# print(z)

# else:

# print('-1')

#

# # Q4026

# numbers = list(map(int, input().split()))

# numbers.sort()

# a = len(numbers)

# if a%2 == 1:

# print(numbers[a//2])

# else:

# half = (numbers[(a//2)] - numbers[(a//2)-1]) // 2

# print((numbers[(a//2)-1]) + half)

#

# # Q 4711

# people = 0

# howMany = []

# for i in range(4):

# off, on = map(int, input().split())

# people -= off

# people += on

# howMany.append(people)

# howMany.sort()

# print(howMany[3])

#

# # Q 4716

# people = 0

# howMany = []

# for i in range(9):

# off, on = map(int, input().split())

# people -= off

# people += on

# howMany.append(people)

# howMany.sort()

# print(howMany[8])

#

# dish = list(input())

# height = 10

# for i in range(len(dish)-1):

# if dish[i-1] == '(':

# if dish[i] == '(':

# height += 5

# elif dish[i] == ')':

# height += 10

# elif dish[i-1] == ')':

# if dish[i] == ')':

# height += 5

# elif dish[i] == '(':

# height += 10

# print(height)

# print(height)

#

dish = list(input())

height = 10

for i in range(len(dish)-1):

if dish[i] == '(':

if dish[i+1] == '(':

height += 5

elif dish[i+1] == ')':

height += 10

elif dish[i] == ')':

if dish[i+1] == ')':

height += 5

elif dish[i+1] == '(':

height += 10

print(height)