(define (solve c xxv i)
  (let* ((rem-i (mod i 25))
	 (exd-xxv (+ xxv (div i 25)))
	 (rem-xxv (mod exd-xxv 4))
	 (exd-c (+ c (div exd-xxv 4)))
	 (rem-c (mod exd-c 10)))
    (+ rem-i rem-xxv rem-c)))

(print (solve (read) (read) (read)))