#include <bits/stdc++.h>
using namespace std;

int main() {
  int A, B;
  cin >> A >> B;
  bool complain = false;
  if (A > B * 2)
    complain = true;
  if (B > A * 2)
    complain = true;
  if (complain)
    cout << "No" << endl;
  else
    cout << "Yes" << endl;
  return 0;
}