import java.util.Scanner;


public class Main_yukicoder98 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int x = sc.nextInt();
        int y = sc.nextInt();

        int r = (int)Math.ceil(Math.sqrt(x * x + y * y));

        int ret = 2 * r;
        if (r * r == x * x + y * y) {
        	ret++;
        }

        System.out.println(ret);
        
        sc.close();
    }
}