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());
        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));
    }
}