Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 571028960c64c90990000003

From A to B

Mirror and change this text block

Start file

A.a.A.A.A
A.A.a.A.A
A.A.A.a.A

End file

BBBbB
BBbBB
BbBBB

View Diff

1,3c1,3
< A.a.A.A.A
< A.A.a.A.A
< A.A.A.a.A
---
> BBBbB
> BBbBB
> BbBBB

Solutions by @MelvinCheung:

Created by: @holalluis Tweet

159 active golfers, 591 entries

Solutions by @MelvinCheung: