// https://www.hackerrank.com/challenges/java-strings-introduction/problem

import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        
        Scanner sc=new Scanner(System.in);
        String A=sc.next();
        String B=sc.next();
        /* Enter your code here. Print output to STDOUT. */
        System.out.println(A.length() + B.length());
        System.out.println(A.compareTo(B) > 0 ? "Yes" : "No");
        System.out.println(
            A.substring(0, 1).toUpperCase() + A.substring(1) + " " + 
            B.substring(0, 1).toUpperCase() + B.substring(1) );
    }
}