Enumerating words and Adding integer, character and string

[dont bother]

1. How do I make a vector of words in a file.
Ex:
File has 

Alpha
Beta 
Gamma

I want to have this file:
1 Alpha
2 Beta
3 Gamma

I just dont want to write it/print it instead I want a
mapping. A vector kind of thing whose first attribute
is interger second is the 'word'


2. How to I create a string for example by adding:

s=1 + ":" + "dont"

this does not work if I normally try to concatenate
and write to a file.

Any help is appreciated
Thanks
Dont

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