import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int xp = sc.nextInt();
    int yp = sc.nextInt();
    int s = xp * xp + yp * yp;
    int r = (int)Math.sqrt(s);
    int ans = 0;
    for(int i = 2 * r; i <= 2 * r + 4; i++) {
      if(i * i > 4 * s) {
        ans = i;
        break; 
      }
    }
    System.out.println(ans);
  }
}