package main

import (
	"fmt"
	"math"
)

func main() {
	var x, y float64
	_, _ = fmt.Scan(&x, &y)

	r2 := math.Pow(math.Abs(x), 2) + math.Pow(math.Abs(y), 2)
	r := math.Ceil(math.Sqrt(r2))
	if r2 < r*r {
		fmt.Println(2 * r)
	} else {
		fmt.Println(2*r + 1)
	}
}