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 @int_cl:
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