package ycoder;

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

public class CircleLatticePoint {
	public static void main(String... string) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] tmp = br.readLine().split(" ");
		
		int rMin = Integer.parseInt(tmp[0]);
		int rMax = Integer.parseInt(tmp[1]);
		ArrayList<Integer> latticePointList = new ArrayList<>();

		CircleLatticePoint clp = new CircleLatticePoint();
		for(int r = rMin; r <= rMax; r++) {
			latticePointList.add(clp.getLatticePoint(r));
		}
		latticePointList.stream()
						.sorted((a,b) -> b - a);
		int maxLatticePoint = latticePointList.get(0);
		System.out.println(maxLatticePoint);
	}
	public int getLatticePoint(int r) {
		int result = 0;
		for(int x = -1 * r; x <= r; x++) {
			for(int y = -1 * r; y <= r; y++) {
				if(r == x*x + y*y) {
					result++;
				}
			}
		}
		return result;
	}
}