Rectify wrong alignment

Hello, I've made a mistake when writing a formula, I added a space where I shouldn't have and now all the results skewed.
As you can see in the example, the L column is out of alignment, some cells have a space before the digits, some don't.
I tried to fix it by formatting but it won't work.. obviously.
I was thinking of a formula where
IF L2 contains ("2-0", then "2-0", if not, if it contains "2-1", then "2-1", and so on with nested ifs. but I don't know what formula to use.

Thanks