import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {
		BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));

		try {
			String first = buff.readLine();
			String second = buff.readLine();
			StringBuilder build = new StringBuilder(second);

			for(int i = 0; i < first.length(); ++i){
				char ch = first.charAt(i);
				if(build.indexOf(ch+"") == -1){
					break;
				}else{
					build.deleteCharAt(build.indexOf(ch+""));
				}
			}

			if(build.toString().length() > 0){
				System.out.println("NO");
			}else{
				System.out.println("YES");
			}

		} catch (NumberFormatException e) {
			e.getStackTrace();
		} catch (IOException e) {
			e.getStackTrace();
		} catch (Exception e) {
			e.getStackTrace();
		}
	}
}