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No. The "or" there means you can pretend the 1 is on the left:

10000000

or on the right:

00000001

It doesn't actually matter, it's just whatever you prefer to show it as. If you will...

00000000

There's a byte. Pick one end of it and use it for 1

10000000 or 00000001

Now you wanted four and five:

00100000 or 00000100
10100000 or 00000101