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>perl -wMstrict -le "my $orig = 'AABBCCDDEEFFGGHH'; ... print qq{'$new'}; " 'aabbCCDdEEFfgGHh'
>perl -wMstrict -le "my $orig = 'fEEfoobarFIEFooBarFoEfOoBaRfUM'; ... print qq{'$new'}; " 'feeFooBarfieFooBarfoeFooBarfum'