; Here your code !
(define n (read) )
(define guilty (*(/ 1 10000)n))
(define innocent (- 1 guilty))
(define capturedinnocent (/ innocent 100))
(define capturedguilty (*(/ guilty 100)99))
(print (inexact(*(/ capturedinnocent(+ capturedguilty capturedinnocent) )100)))