22187번: Конкатенация строк ↗

"""
[22187: Конкатенация строк](https://www.acmicpc.net/problem/22187)

Tier: Silver 5 
Category: implementation, parsing, string
"""


import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta

SYS_INPUT = True
RECURSION_LIMIT = 10 ** 7
SET_RECURSION = False
BLANK = " "

if SET_RECURSION:
  sys.setrecursionlimit(RECURSION_LIMIT)

inp = lambda : sys.stdin.readline().rstrip() if SYS_INPUT else input()
mii = lambda : [*map(int,inp().split())]
mfi = lambda : [*map(float,inp().split())]
ii = lambda : int(inp())
fi = lambda : float(inp())
isplit = lambda : inp().split()
p = print

def gcd(a, b): return gcd(b, a % b) if b > 0 else a
def lcm(a, b): return a * b // gcd(a, b)


def solve():
  s = inp()

  ans = ""
  tmp = ""

  chk = False
  for i in s:
    if i == "(":
      chk = True
    elif i == ")":
      chk = False
      ans += tmp[::-1]
      tmp = ""
    else:
      if chk:
        tmp += i
      else:
        ans += i
  
  print(ans)


if __name__ == "__main__":
  tc = 1
  for t in range(1, tc+1):
    ret = solve()