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 sumOfStringLength = A.length() + B.length();
    System.out.println(sumOfStringLength);

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

    String A1 = A.substring(0, 1).toUpperCase() + A.substring(1);
    String A2 = B.substring(0, 1).toUpperCase() + B.substring(1);

    System.out.println(A1 + " " + A2);
}

}