(let (
          (Handred (read (current-input-port)))
          (TwentyFive (read (current-input-port)))
          (One (read (current-input-port)))
      )
     (begin
         (let loop((i One))
             (when (>= i 25)
                 (begin
                     (set! One (- One 25))
                     (set! TwentyFive (+ TwentyFive 1))
                     (loop One)
                 )
            )
        )
        (let loop((i TwentyFive))
            (when (>= i 4)
                (begin
                    (set! TwentyFive (- TwentyFive 4))
                    (set! Handred (+ Handred 1))
                    (loop TwentyFive)
                )
            )
        )
        (set! Handred (modulo Handred 10))
        (display (+ One TwentyFive Handred))
        (newline)
    )
)