Cognizant

import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone
{
    public static void main (String[] args) throws java.lang.Exception
    {
        Scanner sc = new Scanner(System.in);
        String c = sc.nextLine();
        String bill = sc.nextLine();
        int amt = sc.nextInt();
        int ans = 0;
        for(int i = 0; i < bill.length(); i++){
            if(Character.isDigit(bill.charAt(i)) == false) {
                System.out.println("invalid bill number");
                System. exit(1);
            }
            ans += bill.charAt(i) - '0';
        }
        System.out.println(ans);
        if(bill.length() == 6 && ans != 0){
            if(ans % 2 == 0){
                System.out.println("Total bill amout is "+(amt*0.9));

            }
            else{
                System.out.println("Total bill amout is "+amt);
                System.out.println("Congratulations!! You are selected for lucky draw");
            }
        }
        else{
            System.out.println("invalid bill number");
            System. exit(1);
        }
    }
}