Flag is A+B

You only need to calculate A+B to get the flag! Wait, what were A and B...?

Beginner Hint 1

• Your goal is to recover the value of FLAG from the values written in output.txt.
• The bytes_to_long function is provided by the pycryptodome package.
• The same package also provides the inverse function, long_to_bytes. Once you have recovered FLAG as an integer, you can use this function to convert it back into the original string.

Beginner Hint 2

• A well-known identity relating addition and bitwise operations is A + B = (A xor B) + 2 * (A and B). A good starting point is to understand why this identity holds.