#include <iostream>
int main()
{
    using ll = long long;
    ll x, y;std::cin >> x >> y;
    x = std::abs(x), y=std::abs(y);
    const ll r = x*x+y*y;
    ll inf = -1, sup = 40000;
    while(sup-inf>1){
        const ll mid = (inf+sup)/2;
        (mid*mid>r*4LL?sup:inf)=mid;
    }
    std::cout << sup<< std::endl;
    return 0;
}