2019-01-02 01:12:02 +00:00
|
|
|
import os
|
|
|
|
|
path = os.path.dirname(os.path.abspath(__file__))
|
|
|
|
|
|
|
|
|
|
with open(path+'/input.txt', 'r') as input:
|
2018-11-29 16:48:25 +00:00
|
|
|
counter = 0
|
|
|
|
|
text = input.readline()
|
|
|
|
|
for char in text :
|
|
|
|
|
if char == ')':
|
|
|
|
|
counter -= 1
|
|
|
|
|
elif char == '(':
|
|
|
|
|
counter += 1
|
|
|
|
|
print (counter)
|
