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. */
    int total= A.length()+B.length();
    System.out.println(total);
    if(A.charAt(0)>B.charAt(0)){
        System.out.println("Yes");
    } else{
        System.out.println("No");
    }
    String upperA = A.substring(0, 1).toUpperCase() + A.substring(1);
    String upperB = B.substring(0, 1).toUpperCase() + B.substring(1);
    System.out.println(upperA+" "+upperB);
}

}