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

long long a,minv=1000003;
int main(void){

	int a,b,c;
	char d ,e;
	int aa,bb,cc;
	char dd,ee;

	cin>>a>>d>>b>>e>>c;
	cin>>aa>>dd>>bb>>ee>>cc;


	 if(a>=aa&&b>=bb&&c>=cc){
		cout<<"YES"<<endl;
			return 0;
	}
	cout<<"NO"<<endl;

}