(define (solve)
    (receive (x y)
             (apply values (map string->number (string-split (read-line) #\space)))
        (let ((r (ceiling->exact (sqrt (+ (expt x 2) (expt y 2))))))
            (if (= (+ (expt x 2) (expt y 2)) (expt r 2))
                (+ 1 (* 2 r))
                (* 2 r)))))

(begin
    (display (solve))
    (newline))