import java.io.*;
import java.util.*;
import java.math.*;

class Main98 {
	
	public static void out (Object out) {
		System.out.println(out);
	}
	
	public static void main (String[] args) throws IOException {
		BufferedReader br = 
			new BufferedReader(new InputStreamReader(System.in));
		
		String[] line = br.readLine().split(" ");
		
		double x = Math.abs(Integer.parseInt(line[0]));
		double y = Math.abs(Integer.parseInt(line[1]));
		double d = Math.sqrt(x * x + y * y);
		double sub = d - (int)d;
		
		out(sub < .5 ? (int)d * 2 + 1 : ((int)d + 1) * 2);
		
	}
}