codeforces/560D_strings.py
def uinput():
        """ Unit-testable input function wrapper """
        if it:
            return next(it)
        else:
            return sys.stdin.readline().rstrip()
 Unit-testable input function wrapper 
Unit-testable input function wrapper
Unit - testable input function wrapper
def uinput():
        if it:
            return next(it)
        else:
            return sys.stdin.readline().rstrip()
def uinput ( ) : if it : return next ( it ) else : return sys . stdin . readline ( ) . rstrip ( )
Unit-testable input function wrapper
Unit - testable input function wrapper
""" Unit-testable input function wrapper """