ok i'm not sure if i can use regex to do this it'd be great if you can give some suggestions!
i have a list of pure numbers in one hand
and another list of also numbers but with dashes.
it's like this:
list1 = [245366556346,4534525326562,56345254234237...
list2 = [75465-54224-4,3-55-342526,....
as you can see the postion of dash changes.
given that all my numbers have same length, how do I introduce dash to exactly the same way to pure number list?
what i mean is if I have 12345 in list 1 and 76-543 in list 2, i want to create a list that has 12-345.