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();
    int le=A.length()+B.length();
    System.out.println(le);
   if(A.compareTo(B)>0){
       System.out.println("Yes");
   }
   else{
       System.out.println("No");
   }
  String v= A.substring(0,1).toUpperCase()+A.substring(1).toLowerCase();
String v1= B.substring(0,1).toUpperCase()+B.substring(1).toLowerCase();  
System.out.print(v+" ");
System.out.println(v1);
    /* Enter your code here. Print output to STDOUT. */

}

}