Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The corret direction of the flowlines is South East. Flowline A is flowing North West thus creating an error. The error is best seen when two flowline arrows are facing each other (red box). To correct this error, flip flowline A to be facing South East.
Public Domain.
