#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<ll> vll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvll;
const ll inf = 1e16;
const ll md = 1000000007;

int vtoa(string s){
  int res=0;
  int n=s.size();
  int l=0;
  int base=1000000;
  rep(i,n){
    if(s[i]=='.'){
      res+=stoi(s.substr(l,i-l))*base;
      base/=1000;
      l=i+1;
    }
  }
  res+=stoi(s.substr(l));
  return res;
}

int main() {
  string s,t;
  cin>>s>>t;
  int old=vtoa(s);
  int now=vtoa(t);  
  if(now<=old) puts("YES");
  else puts("NO");
  return 0;
}