using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine();

            var ingredientCount = 0;

            while(input != "Bake!")
            {
                var ingredient = input;
                ingredientCount++;
                Console.WriteLine($"Adding ingredient {ingredient}.");
                input = Console.ReadLine();
            }

            Console.WriteLine($"Preparing cake with {ingredientCount} ingredients.")
        }
    }
}