Combine two variables

[volcane]

I have a problem, i have two variables from these two i get a it is the union of two, I explained with an example:

Variabile_1 =3
Variabile_2 =5

Variabile_3 = Variabile_ 1 e Variabile_2

Variabile_3=35

How can we do?

[mister_e]

Will Variabile_2 & Variabile_1 be always <10 and decimal values?

If so...Variabile_3 = (Variabile_1*10) + Variabile_2

[volcane]

Hi!

Thanks for the help