import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class No98 {

	public static void main(String[] args) throws IOException{
		//円を描こう
		String[] str = readStr()[0].split(" ");
		double X = Double.parseDouble(str[0]) , Y = Double.parseDouble(str[1]);
		
		double R = Math.sqrt(X * X + Y * Y);
		
		int D;
		if(R == Math.ceil(R)) {
			D = (int)R * 2 + 1;
		}else {
			D = (int)Math.ceil(R * 2);
		}
		
		System.out.println(D);
		
		
	}

	public static String[] readStr() throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		ArrayList<String> list = new ArrayList<>();

		do {
			list.add(br.readLine());
		}while(br.ready());

		br.close();

		String[] text = new String[list.size()];
		list.toArray(text);

		return text;

	}
}