import std.algorithm, std.array, std.range;
import std.string, std.conv;
import std.math;
import std.stdio, std.typecons;

void main()
{
  auto rd = readln.split.map!(to!int);
  auto xp = rd[0];
  auto yp = rd[1];

  auto r = sqrt((xp ^^ 2 + yp ^^ 2).to!real).to!int;
  if (r ^^2 == xp ^^2 + yp ^^2)
    r = r * 2 + 1;
  else
    r = (r + 1) * 2;

  writeln(r);
}