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();
    /* Enter your code here. Print output to STDOUT. */
System.out.println(A.length()+B.length());

  int result = A.compareTo(B);

    if (result > 0) {
        System.out.println("Yes");
    } else {
        System.out.println("No");
    }

System.out.print(A.substring(0,1).toUpperCase()+ A.substring(1)+" "); System.out.println(B.substring(0,1).toUpperCase()+ B.substring(1));

}

}