x s/$/ 0cba2fed3ihg4lkj5onm6srqp7vut8zyxw9/ s/[0-9]/<&&&&/g x G : s/\([^1]*\)1\(.*\(.\)....\1\)/\3\2/ t P d
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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