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(with-input-from-file "CAU4.INP" (lambda ()
(with-output-to-file "CAU4.OUT" (lambda ()
(define x (list->string (let read-string ((c (read-char)))
(if (or (eof-object? c) (char=? c #\newline))
'()
(cons c (read-string (read-char)))))))
(let find-palin ((i 0))
(if ((lambda (s) (string=? (string-reverse s) s))
(string-copy x i (string-length x)))
(format #t "~a\n~a~a\n" i x (string-reverse (string-copy x 0 i)))
(find-palin (+ i 1))))))))
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