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##Perl, 28 22 21 bytes (20 + -p flag)
-p
s/[a-z]/$&.$&^$"/ige
##Perl, 28 2222 21 bytes (2120 + -p flag)
s/[a-z]/$&.$&^' '$&^$"/ige
##Perl, 28 22 bytes (21 + -p flag)
s/[a-z]/$&.$&^' '/ige
##Perl, 28 2122 bytes (2021 + -p flag)
s/[A[a-z]/$&.$&^' '/geige
##Perl, 28 21 bytes (20 + -p flag)
s/[A-z]/$&.$&^' '/ge
