#include <iostream>
#include <math.h>
#include <algorithm>
#include <map>
#include <vector>
using namespace std;

#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, d, n) for (int i = d; i < (int)(n); i++)
#define forEach(arr) for (auto& it:arr)


int main(void){
    
    string a,b;
    cin >> a >> b;
    int al = a.length();
    
    map<char,int>m;
    
    rep(i,al) {
        m[a[i]] = 0;
    }
    rep(i,al) {
        m[b[i]] = 0;
    }
    rep(i,al) {
        m[a[i]] += 1;
    }
    // rep(i,al) {
    //     m[b[i]] = true;
    // }
    
    rep(i,al) {
        m[b[i]] -= 1;
        if(m[b[i]] < 0) {
            cout << "NO";
            return 0;
        }
        
    }
    cout << "YES";
    
    
}