7

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

namespace ExamPreparation
{
    public sealed class Product
    {
        public Product(string name, decimal price)
        {
            this.Name = name;
            this.Price = price;
        }

        public string Name { get; private set; }

        public decimal Price { get; set; }

        public int Quantity { get; set; }
    }

    public sealed class Customer
    {
        public Customer(string name)
        {
            this.Name = name;
            this.Products = new Dictionary<string, Product>();
        }

        public string Name { get; private set; }

        public Dictionary<string, Product> Products { get; set; }

        public decimal Bill
        {
            get
            {
                return this.Products.Values.Sum(x => x.Quantity * x.Price);
            }
        }

        public override string ToString()
        {
            StringBuilder output = new StringBuilder();
            output.AppendLine(this.Name);

            foreach (var product in this.Products)
            {
                output.AppendLine($"-- {product.Key} - {product.Value.Quantity}");
            }

            output.AppendLine($"Bill: {this.Bill:F2}");

            return output.ToString().Trim();
        }
    }

    public sealed class Startup
    {
        public static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            Dictionary<string, Product> products = new Dictionary<string, Product>();
            FillProducts(n, products);

            string input = Console.ReadLine();
            SortedDictionary<string, Customer> customers = new SortedDictionary<string, Customer>();

            while (input != "end of clients")
            {
                string[] tokens = input.Split(new[] { '-', ',' }, StringSplitOptions.RemoveEmptyEntries);
                string personName = tokens[0];
                string productName = tokens[1];
                int quantity = int.Parse(tokens[2]);
                Customer customer = new Customer(personName);

                if (products.ContainsKey(productName))
                {
                    if (customers.ContainsKey(personName))
                    {
                        if (customers[personName].Products.ContainsKey(productName))
                        {
                            customers[personName].Products[productName].Quantity += quantity;
                        }
                        else
                        {
                            customers[personName].Products.Add(productName, new Product(productName, products[productName].Price));
                            customers[personName].Products[productName].Quantity += quantity;
                        }
                    }
                    else
                    {
                        customers.Add(personName, customer);
                        customers[personName].Products.Add(productName, new Product(productName, products[productName].Price));
                        customers[personName].Products[productName].Quantity += quantity;
                    }
                }

                input = Console.ReadLine();
            }

            foreach (var customer in customers)
            {
                Console.WriteLine(customer.Value);
            }

            decimal totalBill = customers.Sum(c => c.Value.Bill);
            Console.WriteLine($"Total bill: {totalBill:F2}");
        }

        private static void FillProducts(int n, Dictionary<string, Product> products)
        {
            for (int i = 0; i < n; i++)
            {
                string[] tokens = Console.ReadLine().Split(new[] { '-' }, StringSplitOptions.RemoveEmptyEntries);
                string productName = tokens[0];
                decimal cost = decimal.Parse(tokens[1]);

                if (products.ContainsKey(productName))
                {
                    products[productName].Price = cost;
                }
                else
                {
                    products.Add(productName, new Product(productName, cost));
                }
            }
        }
    }
}