package net.ipipip0129.kotlin.yukicoder

fun main(args: Array<String>) {
    val data = readLine()!!.split(" ")
    val pos = Pos(data[0].toDouble(), data[1].toDouble())

    val dis = Math.sqrt(Math.pow(pos.x, 2.0) + Math.pow(pos.y, 2.0))

    if (dis == dis.toLong().toDouble()) {
        println(dis.toLong() * 2 + 1)
    }else {
        println(Math.ceil(dis).toLong() * 2)
    }
}

private class Pos(val x: Double, val y: Double)