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());

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

    String capA=A.substring(0,1).toUpperCase()+A.substring(1);
    String capB=B.substring(0,1).toUpperCase()+B.substring(1);

    System.out.println(capA+" "+capB);
}

}