Load several variables from 1 txt file

hello

I import variables from txt file with loadvariablesnum.

but,

I can load only one variable from my txt file.

exemple of my txt file : var_a = 2

I would like to load several variables from 1 txt file.

like : var_a=2
var_b=3
var_c=4

How seperate the variables in the txt file for Flash to recognize each one???

thanks for your help