The two numbers

Let $A$ and $B$ be 2 positive integers such that

• their product is 100000,

• the decimal representation of its digits does not contain 0, and

• $A<B$ .

Submit your answer as the concatenation of the digits of $A$ and $B$ .

For example, if you think that $A = 1213, B = 7654$ , submit your answer as 12137654.