#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

int main() {
    string s, t;
    cin >> s >> t;
    int n = s.size();
    int m = t.size();
    int x = 0;
    int y = 0;
    int z = 0;
    rep(i,n){
        if(s[i] != '.'){
            z *= 10;
            z += s[i] - '0';
        }else{
            x *= 101;
            x += z;
            z = 0;
        }
    }
    x *= 101;
    x += z;
    z = 0;
    rep(i,m){
        if(t[i] != '.'){
            z *= 10;
            z += t[i] - '0';
        }else{
            y *= 101;
            y += z;
            z = 0;
        }
    }
    y *= 101;
    y += z;
    z = 0;
    
    if(y <= x)yn;
    
    return 0;
}