diff --git a/1_if1.py b/1_if1.py
index be736084..070e9915 100644
--- a/1_if1.py
+++ b/1_if1.py
@@ -13,13 +13,28 @@
 * Вывести содержимое переменной на экран
 
 """
+def age_detector(age_input):
+    #activity_to_do = 
+    if age_input < 7:
+        activity_to_do = 'Пользователь должен ходить в садик!'
+    elif age_input >= 7 and age_input < 16:
+        activity_to_do = 'Пользователь должен учиться в школе!'
+    elif age_input >= 16 and age_input < 21:
+        activity_to_do = 'Пользователь должен учиться в ВУЗе!'
+    else: #age_input >= 21:
+        activity_to_do = 'Пользователь должен работать!'        
+    return activity_to_do
 
 def main():
     """
     Эта функция вызывается автоматически при запуске скрипта в консоли
     В ней надо заменить pass на ваш код
     """
-    pass
+    age = int(input('Сколько Вам лет? '))
+    print('Ваш возраст:', age, 'лет!')
+    activity = age_detector(age)
+    #return age
+    print(activity)
 
 if __name__ == "__main__":
     main()
diff --git a/2_if2.py b/2_if2.py
index 0f1644f3..d396bc73 100644
--- a/2_if2.py
+++ b/2_if2.py
@@ -14,6 +14,7 @@
   и выводя на экран результаты
 
 """
+#Здесь я буду писать свою функцию!
 
 def main():
     """
diff --git a/3_for.py b/3_for.py
index 5ca9f504..2a6fbf3d 100644
--- a/3_for.py
+++ b/3_for.py
@@ -1,3 +1,4 @@
+# Домашка номер 3!
 """
 
 Домашнее задание №1
@@ -15,13 +16,70 @@
 * Посчитать и вывести суммарное количество продаж всех товаров
 * Посчитать и вывести среднее количество продаж всех товаров
 """
+def number_of_goods(sold_products, row):
+    number_of_sold = 0
+    phones_sold_number = 0
+    for number_of_sold in range(len(sold_products[row]['items_sold'])):
+        phones_sold_number += sold_products[row]['items_sold'][number_of_sold]
+    return phones_sold_number
+
+def avg_number_of_goods(sold_products, row):
+    number_of_sold = 0
+    phones_sold_number = 0
+    average_sold = 0
+    total_sold = len(sold_products[row]['items_sold'])
+    for number_of_sold in range(len(sold_products[row]['items_sold'])):
+        phones_sold_number += sold_products[row]['items_sold'][number_of_sold]
+    average_sold = int(phones_sold_number / total_sold)
+    return average_sold
+
+def avg_number_of_all_goods(sold_products):
+    category = 0
+    number_of_sold = 0
+    phones_sold_number = 0
+    average_sold = 0
+    total_sold = len(sold_products['product']['items_sold'])
+#    total_sold = len(sold_products)
+#    total_sold = len(sold_products[],[])
+#    print(total_sold)
+    
+#    iphone_12_dict = dict(sold_products[0][1][])
+#    print(iphone_12_dict)
+
+#    params = sold_products.get("items_sold")
+    print(sold_products)
+
+    for category in range(len(sold_products[category]['items_sold'])):
+        print("category = ", category)
+        print("Range of category:", range(len(sold_products[category]['items_sold'])))
+        for number_of_sold in range(len(sold_products[category]['items_sold'])):
+            print("number_of_sold = ", number_of_sold)
+            phones_sold_number += sold_products[category]['items_sold'][number_of_sold]
+            print(phones_sold_number)
+        average_sold = int(phones_sold_number / total_sold)
+    return average_sold
 
 def main():
     """
     Эта функция вызывается автоматически при запуске скрипта в консоли
     В ней надо заменить pass на ваш код
     """
-    pass
+    sold_products = [
+    {'product': 'iPhone 12', 'items_sold': [363, 500, 224, 358, 480, 476, 470, 216, 270, 388, 312, 186]}, 
+    {'product': 'Xiaomi Mi11', 'items_sold': [317, 267, 290, 431, 211, 354, 276, 526, 141, 453, 510, 316]},
+    {'product': 'Samsung Galaxy 21', 'items_sold': [343, 390, 238, 437, 214, 494, 441, 518, 212, 288, 272, 247]},
+    ]
+    print("Кол-во проданных iPhone12: ", number_of_goods(sold_products, 0))
+    print("Кол-во проданных Xiaomi Mi11: ", number_of_goods(sold_products, 1))
+    print("Кол-во проданных Samsung Galaxy 21: ", number_of_goods(sold_products, 2), "\n")
+
+    print("Среднее кол-во проданных iPhone12: ", avg_number_of_goods(sold_products, 0))
+    print("Среднее кол-во проданных Xiaomi Mi11: ", avg_number_of_goods(sold_products, 1))
+    print("Среднее кол-во проданных Samsung Galaxy 21: ", avg_number_of_goods(sold_products, 2), "\n")
+
+    print("Кол-во проданных Samsung Galaxy 21: ", number_of_goods(sold_products, 0) + number_of_goods(sold_products, 1) + number_of_goods(sold_products, 2), "\n")
     
+#    print("Среднее кол-во всех проданных устройств: ", avg_number_of_all_goods(sold_products))
+
 if __name__ == "__main__":
     main()
diff --git a/learn-homework-1 b/learn-homework-1
new file mode 160000
index 00000000..0734409b
--- /dev/null
+++ b/learn-homework-1
@@ -0,0 +1 @@
+Subproject commit 0734409b4d71d6521bd705338817d837e19ed7a0