import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String A = scan.next();
		String B = scan.next();
		scan.close();
		List<String> str =  new ArrayList<>(Arrays.asList(A.split("")));
		//System.out.println(str.size());
		for(int i = 0; i < A.length(); i++) {
			String s = B.substring(i, i + 1);
			boolean flag = true;
			for(int j = 0; j < str.size(); j++) {
				if(s.equals(str.get(j))) {
					str.remove(j);
					flag = false;
					break;
				}
			}
			if(flag) {
				System.out.println("NO");
				System.exit(0);
			}
		}
		System.out.println("YES");
	}
}