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))

    println((dis * 2).toLong() + 1)
}

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