diff --git a/src/main/java/Calculator.java b/src/main/java/Calculator.java
new file mode 100644
index 000000000..8ead91da9
--- /dev/null
+++ b/src/main/java/Calculator.java
@@ -0,0 +1,33 @@
+public class Calculator {
+
+    private double check = 0;
+    private Product product;
+    private Guest guest;
+
+    public Calculator(Product product, Guest guest) {
+        this.product = product;
+        this.guest = guest;
+    }
+
+    public void cheakCalcForm() {
+        check = product.sum / guest.guests;
+        double checkF = Math.floor(check);
+        int checkO = (int) checkF % 10;
+    switch (checkO)
+    {
+        case 1:
+            System.out.println(String.format("%.2f", check) + " рубль");
+            break;
+        case 2:
+        case 3:
+        case 4:
+            System.out.println(String.format("%.2f", check)  + " рубля");
+            break;
+        default:
+            System.out.println(String.format("%.2f", check)  + " рублей");
+            break;
+    }
+    }
+}
+
+
diff --git a/src/main/java/Guest.java b/src/main/java/Guest.java
new file mode 100644
index 000000000..e03d7ecfb
--- /dev/null
+++ b/src/main/java/Guest.java
@@ -0,0 +1,20 @@
+public class Guest {
+    int guests;
+    public void numGuests() {
+        System.out.println("Здравствуйте. Введите количество гостей:");
+        while (true) {
+            String guestsStr = Main.scanner.next();
+            try {
+                int ans = Integer.parseInt(guestsStr);
+                if (ans <= 1) {
+                    throw new RuntimeException();
+                }
+                guests = ans;
+                return;
+            } catch (Exception e) {
+                System.out.println("Ошибка, попробуйте еще раз!\n----------");
+                System.out.println("Введите количество гостей:");
+            }
+        }
+    }
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
index db9356a08..3a96f2623 100644
--- a/src/main/java/Main.java
+++ b/src/main/java/Main.java
@@ -1,6 +1,16 @@
+import java.util.Scanner;
 
 public class Main {
+    static Scanner scanner = new Scanner(System.in);
+
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        Guest guest = new Guest();
+        Product product = new Product();
+        Calculator calc = new Calculator(product, guest);
+
+        guest.numGuests();
+        product.products();
+        product.shoplist();
+        calc.cheakCalcForm();
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/Product.java b/src/main/java/Product.java
new file mode 100644
index 000000000..d12fd8f60
--- /dev/null
+++ b/src/main/java/Product.java
@@ -0,0 +1,51 @@
+import java.util.ArrayList;
+
+public class Product {
+    String name;
+    double price;
+    double sum = 0;
+    ArrayList<String> listPro = new ArrayList<>();
+
+    public void products() {
+
+        System.out.println("Укажите название и стоимость каждого товара?");
+        name = "";
+        boolean isProductInputFinished = false;
+        while (!isProductInputFinished) {
+            System.out.println("Название товара:");
+            name = Main.scanner.next();
+            if (name.equalsIgnoreCase("завершить")) {
+                isProductInputFinished = true;
+                continue;
+            }
+            listPro.add(name);
+            priceSum();
+            System.out.println("Товар успешно добавлен!\n----------");
+            System.out.println("Хотите добавить еще один товар? Если нет, то введите - Завершить");
+        }
+
+    }
+
+    private void priceSum() {
+        System.out.println("Стоимость товара = ");
+        String priceStr = Main.scanner.next();
+        try {
+            price = Double.parseDouble(priceStr);
+        } catch (Exception e) {
+            price = -1;
+        }
+        if (price < 0.0) {
+            System.out.println("Введите корректную стоимость товара:");
+            priceSum();
+            return;
+        }
+        sum = sum + price;
+    }
+    public void shoplist() {
+        System.out.println("----------\nДобавленные товары:");
+        for (int i = 0; i < listPro.size(); i++) {
+            System.out.println(listPro.get(i));
+        }
+    }
+}
+