how to get two columns in diagram each on other y-axix?

Hello!
Please, I have more columns in a table and I have to choose two of them to make a diagram.
Each has to be on other side (one right and another left).

Please ,as I dont have pc with lireoffice to check alone at the moment, would someone be so kind to tell me how to achieve it?

Many thanks in advance!!!

Please be more specific and show some effort before asking.