//No.98 円を描こう
#pragma GCC optimize("O3")
#pragma GCC target("avx")
#include <bits/stdc++.h>
#define rep(i ,n) for(int i=0;i<(int)(n);++i)

using namespace std;

signed main(){
    int px , py; cin >> px >> py;
    double dist = sqrt( px * px + py * py);
    double d = fabs(dist - static_cast<int>(dist));
    if( d >= 0.5 ) cout << ceil(dist) * 2 << endl;
    else if ( d == 0.0) cout << static_cast<int>(dist)*2 + 1 << endl;
    else if( d > 0.0 && d < 0.5) cout << static_cast<int>(d * 2) << endl;   
}