diff --git a/ItemNo.py b/ItemNo.py
new file mode 100644
index 0000000..fef4bbd
--- /dev/null
+++ b/ItemNo.py
@@ -0,0 +1,43 @@
+
+class ItemInfo:
+    def __init__(self, ItCode=0, Item=0, Price=0, Qty=0, Discount=0, Netprice=0):
+        self.ItCode=ItCode
+        self.Item=Item
+        self.Price=Price
+        self.Qty=Qty
+        self.Discount=Discount
+        self.Netprice=Netprice
+    def Buy(self):
+        self.ItCode= input("Enter Item Code")
+        self. Item= input("Enter Item Name")
+        self.Price= int(input("Enter Price"))
+        self.Qty= int(input("Enter Quantity"))
+        self.Discount = self.FindDisc()
+        self.Netprice = int(self.Price*(100-self.Discount)/100)
+    def FindDisc(self):
+        if self.Qty <= 10:
+            self.Discount = 0
+        elif  11 <=  self.Qty < 20:
+            self.Discount = 15
+        else:
+            self.Discount = 20
+
+        return self.Discount
+
+    def ShowAll(self):
+        print ("Item Code",self.ItCode)
+        print ("tem Name",self.Item)
+        print ("Price",self.Price)
+        print ("Discount",self.Discount)
+        print ("NetPrice",self.Netprice)
+
+    def show_All(self):
+        return  """ Item code: {} Item name: {} Item price: {} Item quantity: {} 
+Item Discount: {} percent Discounted item price: {}
+         """.format(self.ItCode,self.Item,self.Price,self.Qty, self.Discount, self.Netprice)
+
+
+new_item = ItemInfo()
+new_item.Buy()
+print(new_item.show_All())
+
diff --git a/Product.py b/Product.py
new file mode 100644
index 0000000..2681cc2
--- /dev/null
+++ b/Product.py
@@ -0,0 +1,49 @@
+
+
+class Product:
+
+    def __init__(self):
+        self.Pid = ""
+        self.Pname = ""
+        self.Pcostprice = 0.0
+        self.Psellprice = 0.0
+        self.Margin = 0.0
+        self.Remarks = ""
+
+    def GetDetails(self):
+
+        self.Pid = input("Enter Product ID:")
+        self.Pname = input("Enter Product Name :")
+        self.Pcostprice = input("Enter Cost Price")
+        self.Psellprice = input("Enter Selling Price")
+        self.SetRemarks()
+
+
+    def SetRemarks(self):
+        self.Margin = int(self.Psellprice) - int(self.Pcostprice)
+        if self.Margin < 0:
+            self.SetRemarks = "Loss "
+        else:
+            self.SetRemarks = "Profit"
+
+    def SetDetails(self):
+
+        print ("Product ID:", self.Pid)
+        print ("Product Name:", self.Pname)
+        print("Cost Price:", self.Pcostprice)
+        print("Selling Price:", self.Psellprice)
+        print("Margin:", self.Margin)
+        print("Incurred:",  self.SetRemarks)
+
+    def showAll(self):
+        return  """ Product ID: {} Product Name: {} 
+        Cost Price: {} 
+        Selling Price: {} 
+        Margin: {} 
+        Incurred: {}
+         """.format(self.Pid,self.Pname,self.Pcostprice,self.Psellprice, self.Margin, self.SetRemarks)
+
+new_product=Product()
+new_product.GetDetails()
+print(new_product.showAll())
+
diff --git a/ShopList.py b/ShopList.py
new file mode 100644
index 0000000..31116e0
--- /dev/null
+++ b/ShopList.py
@@ -0,0 +1,75 @@
+
+
+class Customer():
+    def __init__(self):
+        self.cust_name = ""
+        self.Cust_Surname = ""
+        #self.full_name = ""
+
+
+    def get_cust_info(self):
+        self.cust_name = input("Enter Your Name:")
+        self.Cust_Surname = input("Enter Your Surname")
+        self.full_name= self.cust_name + " " + self.Cust_Surname
+        self.Cust_id = Customer_No_list.get(self.full_name)
+
+
+    def showAll(self):
+        print (f"Sayin {self.Cust_id} {self.full_name} aliverise baslayabilirsiniz, urun ve miktarini seciniz:")
+        print  (f"Urun ve Fiyat Listesi: kitap:100, kalem:50, silgi: 50, defter: 200")
+        return
+
+Customer_No_list= { "metin tanca": 12346, "mahir canata": 12345 }  #girilen isim onceden kayitli mi, musteri nosu nedir bakiyoruz
+customer1 = Customer()
+customer1.get_cust_info()
+print (customer1.showAll())
+
+class Items(Customer):
+    def __init__(self, Cust_name ):
+        self.Cust_name= Cust_name
+        self.product =["kitap", "kalem", "silgi", "defter"]
+        self.price = """{"kitap":100, "kalem":50,"silgi": 50,"defter": 200}"""
+        self.total_price=0
+        self.price_tobe_paid=0
+        self.alinan_urun = 0
+        self.alinan_urunler=[]
+        self.alinan_miktarlar=[]
+        self.qty = 0
+        self.total_discount=0
+
+    def __str__(self):
+        print(f"musteri kodu:{self.Cust_name} ve urun fiyatlari : {self.price}")
+
+    def calculate_discount(self):
+        self.total_price= self.price * self.qty
+        if self.total_price >= 4000:
+            self.discount=0.25
+        elif self.total_price >= 2000:
+            self.discount=0.15
+        elif self.total_price < 2000:
+            self.discount=0.1
+        return self.discount
+
+    def shopping_cart(self):
+
+        self.alinan_urun=input("kirtasiye urununu giriniz: ")
+        self.price=int(input("fiyatini giriniz? "))
+        self.qty=int(input("miktarini giriniz: "))
+
+        return self.alinan_urun, self.qty
+
+    def get_total_amount(self):
+        self.price_tobe_paid = self.total_price*(1-self.discount)
+        self.total_discount=self.total_price*self.discount
+        return (f"toplam odenen:{self.price_tobe_paid} toplam indirim:{self.total_discount}")
+
+
+    def __str__(self):
+        return f"Alinan urunler {self.alinan_urun} ve toplam odenen {self.price_tobe_paid} ve toplam indirim {self.total_discount}"
+
+a=Items(Customer)
+a.shopping_cart()
+a.calculate_discount()
+a.get_total_amount()
+# print(a.price_tobe_paid)
+print(a.__str__())
\ No newline at end of file
diff --git a/Society.py b/Society.py
new file mode 100644
index 0000000..b4b9645
--- /dev/null
+++ b/Society.py
@@ -0,0 +1,36 @@
+
+
+class Society:
+    def __init__(self, society_name, house_no, no_of_members, flat, income):
+        # constructor
+        self.society_name = society_name
+        self.house_no = house_no
+        self.no_of_members = no_of_members
+        self.flat = flat
+        self.income = income
+
+    def input_data(self):
+
+        self.society_name = input("Enter Society Name:")
+        self.house_no = input("Enter House Number")
+        self.no_of_members = input("Enter No.of members")
+        self.income = int(input("Enter income"))
+
+    def allocate_flat(self):
+        if self.income >= 25000:
+            self.flat = "A Type"
+        elif self.income >= 20000 and self.income < 25000:
+            self.flat = "B Type"
+        elif 15_000 <= self.income < 20_000:
+            self.flat = "C Type"
+        else:
+            self.flat = "DType"
+
+    def show_data(self):
+
+        return f"Society name: {self.society_name} \tHouse number: {self.house_no} \tNo of members: {self.no_of_members} \tFlat type: {self.flat} \tIncome: {self.income}"
+
+
+s1 = Society("Dream Apartments",  16, 3, "D type", 18000) # Member S1
+s1.allocate_flat()
+print(s1.show_data())
\ No newline at end of file