The digit in the tens place is 2 less than the one in the
hundreds place. But when you add them together, they total 8, which
is the digit in the thousands place. Therefore A is 5 and B is 3.
In the tenths place, the digit has the same value in every
place. The only digit that works here is 0, which is worth 0 no matter
where in the number it is placed.
Remaining digitis largest even digit, which is 8.
The answer is 8538.01