#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int ans;
ll sum(ll n)
{
    return 1 + 4 * n * n + 4 * n;
}
ll dis(ll x, ll y)
{
    if(x == 0 && y == 0) return 0;
    if(x < 0)
    {
        if(y <= -x && y >= x + 1)
        {
            return sum(-x - 1) + y - (x + 1);
        }
        else if(y > -x)
        {
            return sum(y - 1) + 2 * y - 1 + x - (-y);
        }
        else
        {
            ans++;
            return sum(-y - 1) + 2 * (-y) - 1 + 2 * (-y) * 2 + (-y) - x;
        }
    }
    else
    {
        if(y <= x && y >= -x)
        {
            return sum(x - 1) + 2 * x - 1 + 2 * x + x - y;
        }
        else if(y > x)
        {
            return sum(y - 1) + 2 * y - 1 + x + y;
        }
        else
        {
            return sum(-y - 1) + 2 * (-y) - 1 + 2 * (-y) * 2 + (-y) - x;
        }
    }
}

int main()
{
    ll x, y;
    cin >> x >> y;
    cout << dis(x, y) << endl;

    return 0;
}