7. 교육과정 설계

import java.util.*;

class Main {
	public String solution(String str1, String str2) {
		String answer = "NO";
		Queue<Character> q = new LinkedList<>();
		for (char c : str1.toCharArray())
			q.offer(c);
		for (char c : str2.toCharArray()) {
			if (c == q.peek())
				q.poll();
			if (q.size() == 0)
				return "YES";
		}
		return answer;
	}

	public static void main(String[] args) {
		Main T = new Main();
		Scanner kb = new Scanner(System.in);
		String str1 = kb.next();
		String str2 = kb.next();
		System.out.print(T.solution(str1, str2));
		kb.close();
	}
}