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 596dd9ca448256000c000011

Array transposition

Transpose two arrays into one.

Start file

[1,2,3,4,5,6,7,8,9,0]
[a,b,c,d,e,f,g,h,i,j]

End file

[1,a,2,b,3,c,4,d,5,e,6,f,7,g,8,h,9,i,0,j]

View Diff

1,2c1
< [1,2,3,4,5,6,7,8,9,0]
< [a,b,c,d,e,f,g,h,i,j]
---
> [1,a,2,b,3,c,4,d,5,e,6,f,7,g,8,h,9,i,0,j]

Solutions by @AyayaMoh:

Created by: @juancolacelli Tweet

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Solutions by @AyayaMoh: