#include <iostream>
#include <string>


using namespace std;


int main(){
	string ostr,nstr;
	string old = "",noww ="";
	
	cin >> ostr;
	cin >> nstr;

	int j=2;
	for(int i=0 ;i< ostr.size();i++){
		if(ostr[i] == '.'){
			j--;
		}else{
			old += ostr[i];
		}
	}

	for(int i=0 ;i< nstr.size();i++){
		if(nstr[i] == '.'){
			j--;
		}else{
			noww += nstr[i];
		}
	}	

	int iold,inoww;
	iold = stoi(old);
	inoww = stoi(noww);
	if(old >= noww){
		cout << "YES" << endl;
	}else{
		cout << "NO" << endl;
	}

}