If you add up the file number you will get
56.
Then multiply it by the number of the bar code when added (23) and get 1288
Divide 1288 by 2 and get 644.
Then add 12 (the hour post number) and get 656
Add 3(the first width number) and get 659.
Then add 3+4(minute of post) to 659 and get
666
OP IS DEVIL!!!