I presume you're trying to use the pipe/redirected output technique, a la foo > t.t 2>&1.

Windows doesn't work that way on the standard pipe interface; console response is typed not to STDOUTor STDERR, but rather via old-fashioned console output.

If you want the user's response echoed to the log file, you're going to have to print the answer with a newline yourself, and it will look odd when not so redirected.