hankei r d2 | d2 == 0   = 1
            | r' >= d2  = r * 2 + 1
            | r > d2    = r * 2
            | otherwise = hankei (r + 1) d2
            where
                r' = r + 1
main = do
    str <- getLine
    let
        [x,y] = map read $ words str :: [Double]
        d2 = sqrt (x^2 + y^2)
    print $ truncate $ hankei (max (abs x) (abs y)) d2