: p s/.\B/& &/2g :0 s/[1-9]/&-/g y/123456789/012345678/ s/-0-\|00/0/ t0 s/0-*/&9876543210/g G s/0.\{9\}\(.\)\S*./\1/g /../b
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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