#include <iostream>		//cin, cout
#include <vector>		//vector
#include <algorithm>	//sort,min,max,count
#include <string>		//string,getline, to_string
#include <cstdlib>		//abs(int)
#include <utility>		//swap, pair

using namespace std;

int main() {

	string A, B;
	cin >> A >> B;

	bool flg = false;

	for (unsigned int i = 0; i < A.length(); i++) {
		flg = false;
		for (unsigned int j = 0; j < B.length(); j++) {
			if (A[i] == B[j]) {
				flg = true;
				B[j] = '0';
				break;
			}
		}
		if (flg == false) {
			break;
		}
	}

	if (flg) {
		cout << "YES" << endl;
	}
	else {
		cout << "NO" << endl;
	}

	return 0;

}