JAVA SOLUTION

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

public class Solution {

public static void solucion(String a,String b){
    ArrayList<String> lista = new ArrayList<String>();
    int total = a.length() + b.length();
    lista.add(a.replace(a.charAt(0), a.toUpperCase().charAt(0)));   
    lista.add(b.replace(b.charAt(0), b.toUpperCase().charAt(0)));

    //Collections.sort(lista);

    System.out.println(total);
    if(lista.get(0).compareTo(lista.get(1)) <=0 ){
        System.out.println("No");
    }
    else{
        System.out.println("Yes");
    }
    System.out.println(lista.get(0)+" "+lista.get(1));
}
public static void main(String[] args) {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
    Scanner scanner = new Scanner(System.in);
    String a = scanner.nextLine();
    String b = scanner.nextLine();
    scanner.close();

    solucion(a,b);
}

}