#!/usr/local/bin/python2
def join(funcs, main=None):
  def f(*args, **kwargs):
    if main is None:
      return [func(*args, **kwargs) for func in funcs]
    return [func(*args, **kwargs) for func in funcs][main]
  return f

func = join((int, str, bool), main=1)
for i in xrange(500000):
  r = func(5)
print r