fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


val () =
    let
        val xp = readInt ()
        val yp = readInt ()
                         
        val ans = Real.trunc ((Math.sqrt (Real.fromInt (xp * xp + yp * yp))) * 2.0) + 1
    in    
        print (Int.toString ans ^ "\n")
    end