题解 | #All in All#

import java.util.Scanner;

public class Main {


    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            char[] subStr = scanner.next().toCharArray();
            char[] full = scanner.next().toCharArray();
            int subIndex = 0;
            for (int i = 0; i < full.length; i++) {
                if (full[i] == subStr[subIndex]) {
                    subIndex++;
                    if (subIndex >= subStr.length) {
                        break;
                    }
                }
            }
            if (subIndex >= subStr.length) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        }
    }
}