---

#include <iostream>
#include <cmath>
using namespace std;
bool is_equal(double a, double b){
  if (fabs(a - b) < 0.01){
    return true;
  }else{
    return 0; 
  }
}
int main(){
  double a, b;
  cin >> a >> b;
  if (is_equal(a, b) == 1){
    cout << "YES";
  }else{
    cout << "NO";
  }
}