stream1: abcdefghijklmnopqrstuvwxyz
stream1: ABCDEFGHIJKLMNOPQRSTUVWXYZ
stream1: 0123456789!@#$%^&*()-=_+,<
stream1: Done!
stream2: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-=_+,<
stream2: Done!