Concatenating numbers

when i use the concatenate formula to combine text and numbers, how can i make it show a zero in front of the numbers 1-9.

in other words,
cell A1 contains ABC, cell B1 contains 1 (even though i type in 01)

cell C1 contains =concatenate(A1,"-",B1) resulting in ABC-1

However, I would like the end result to be ABC-01, with the zero in front of the one. How can i do this?

Use the below one

=concatenate(A1,"0",B1) resulting in ABC01

Try this,
=CONCATENATE(A1,"-",RIGHT("00"&B1,2))

Awesome guys, thank you all for the feedback!

You are welcome.
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