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();
    char ch1=A.charAt(0);
    int n1=(int)ch1;

    char ch2=B.charAt(0);
    int n2=(int)ch2;

    System.out.println(A.length()+B.length());
   if(n1>n2){
       System.out.println("Yes");
   }else{
       System.out.println("No");
   }
   String st1=(A.substring(0,1)).toUpperCase()+(A.substring(1)).toLowerCase();
   String st2=(B.substring(0,1)).toUpperCase()+(B.substring(1)).toLowerCase();
    System.out.println(st1+" "+st2);
}

}