How to concatenate two arbitrary long hex values?

Question

I have two variables. Variable A contains 1024 bytes (not always ascii characters, arbitrary hex values) Variable B contains 64 bytes (not always ascii characters, arbitrary hex values)

How can I generate a variable C such that C = A || B ? (|| means concatenation)

Answer 1

The + operator works on bytes too:

>>> b'\x12\x14' + b'\x16\x0b'
b'\x12\x14\x16\x0b'

Answer 2

ummmm

A = '\x04\x05\x06'
B = '\x04\x05\x06'

C = A + B