Which of the following sentences is best represented as

$VR$

if $V$ represents 'you will vote for me$\text{'}$ and $R$ stands for 'you will regret your vote?$\text{'}$

If you won't regret your vote then you will vote for me$.$

If you vote for me then you will regret your vote.

If you will vote for me then you won't regret your vote.

You will regret your vote if you won't vote for me$.$