Cayley Mathematical Olympiad 2020 Q1

The digits $1, 2, 3, 4, 5, A$ and $B$ are all different and nonzero. Each of the two six-digit integers $``A12345"$ and $``12345A"$ is divisible by $B$.

Find all possible pairs of values of $A$ and $B$.

Input Note: enter each pair of $A$ and $B$ inside brackets in the form $\left(A,B\right)$