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();

    System.out.println(A.length()+B.length());        
    if(A.compareTo(B)>0){
        System.out.println("Yes");
    }
    else
    {
        System.out.println("No");
    }
    System.out.println(A.substring(0,1).toUpperCase()+A.substring(1)+" "+B.substring(0,1).toUpperCase()+B.substring(1));

     sc.close();;           
}

}