845 B | 845 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
# sys.setrecursionlimit(10**7)
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline().rstrip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
l = input().split()
ans = ""
for s in l:
f = 0
b = 0
for i in range(len(s)):
if s[i] == "'":
f += 1
else:
break
for i in range(len(s) - 1, -1, -1):
if s[i] == "'":
b += 1
else:
break
s2 = s[2 * f:]
if b > 0:
s2 = s2[:-(2 * b)]
ans += s2
p(ans)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()