Is there an easy way to rename multiple variables?

Hi, I have a wide dataset and variable names are like

Code:

v1, v2, v3,..., v100.

I want to drop v3 and v10 then rename v4 to v3, v5 to v4,....and then v11 to v9, v12 to v10, so on and so forth.
I know I have to use

Code:

 v`'

or loop, but a bit struggling now.

Thanks.

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