EqualWords

import java.util.Scanner;

public class Nums100 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String firstWord = scanner.nextLine();
        String secondWord = scanner.nextLine();

        firstWord = firstWord.toUpperCase();
        secondWord = secondWord.toUpperCase();

        if (firstWord.equals(secondWord)) {
            System.out.println("yes");
        }else {
            System.out.println("no");


        }
    }
}