#include<stdio.h>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <algorithm>
#include <sstream>
#include <iostream>
#include <string>
#include <stdio.h>

using namespace std;

int main() {

	double xp, yp;
	cin >> xp >> yp;

	double r2 = xp*xp + yp*yp;

	int r = 0;
	for (;;) {
		if (r > 2 * sqrt(r2)) break;
		r++;
	}

	cout <<  r << endl;

	return 0;
}