#include <algorithm>
#include <numeric>
#include <string>
#include <vector>
#include <iostream>
#include <queue>
#include <utility>
#include <cmath>
#include <map>
#include <unordered_map>
#include <functional>
#include <fstream>
using namespace std;

using ull = unsigned long long;

int main()
{
    string A,B;
    cin >> A >> B;

    for(int i =0; i < A.size(); ++i)
    {
        for(int j = 0; j < B.size(); ++j)
        {
            if(A.at(i) == B.at(j))
            {
                B.erase(j,1);
                break;
            }
        }
    }

    if(B.size() == 0)
        cout << "YES" << endl;
    else
        cout << "NO" << endl;
}