05.PuppyCare

using System;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //INPUT
            int boughtFoodKilograms = int.Parse(Console.ReadLine());

            //CHANGEABLE INPUT
            int boughtFoodGrams = boughtFoodKilograms * 1000;
            string command = null;
            int eatenFood = 0;
            int eatenFoodSum = 0;

            //CALCULATIONS
            while ((command = Console.ReadLine()) != "Adopted")
            {
                eatenFood = int.Parse(command);
                eatenFoodSum += eatenFood;
            }

            if (eatenFoodSum > boughtFoodGrams)
            {
                Console.WriteLine($"Food is not enough. You need {eatenFoodSum - boughtFoodGrams} grams more.");
                return;
            }
            else
            {
                Console.WriteLine($"Food is enough! Leftovers: {boughtFoodGrams - eatenFoodSum} grams.");
            }
        }
    }
}