import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
} import java.util.Scanner; Scanner java.util public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    } main {
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String S = sc.next(); S sc.next() sc.next sc String T = sc.next(); T sc.next() sc.next sc String regaxT = String.format("%s.", S); regaxT String.format("%s.", S) String.format String "%s." S if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        } T.matches(regaxT) T.matches T regaxT {
            System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
            System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
} public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
} Main
import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String T = sc.next();
    
        String regaxT = String.format("%s.", S);

        if(T.matches(regaxT)){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
}