import java.util.Scanner;

class No_98 {
	public static void main(String args[]) {
		Scanner stdIn = new Scanner(System.in);		
		int xaxis = stdIn.nextInt();
		int yaxis = stdIn.nextInt();

		double len = Math.pow(xaxis, 2) + Math.pow(yaxis, 2);
		len = Math.sqrt(len);

		for (int i = 0; ; i++) {
			if (len * 2 < i) {
				System.out.println(i);
				break;
			}
		}
	}
}