diff --git a/Credit_card/Credit_card_validator.py b/Credit_card/Credit_card_validator.py
index 9452dd5..7141dcf 100644
--- a/Credit_card/Credit_card_validator.py
+++ b/Credit_card/Credit_card_validator.py
@@ -1,11 +1,12 @@
-
+class CardValidator:
+    
 card_number = input("Enter your card details: ")
 
 
-def even_double_digits(credit_card_number):
+def even_double_digits(self, credit_card_number):
     total_sum_of_even_digits = 0
-    for i in range(len(credit_card_number) - 2, -1, -2):
-        sum_even = int(credit_card_number[i]) * 2
+    for i in range(len(self.credit_card_number) - 2, -1, -2):
+        sum_even = int(self.credit_card_number[i]) * 2
         if sum_even > 9:
             new_sum = sum_even % 10 + sum_even // 10
             total_sum_of_even_digits += new_sum
@@ -14,10 +15,10 @@ def even_double_digits(credit_card_number):
     return total_sum_of_even_digits
 
 
-def odd_digits(credit_card_number):
+def odd_digits(self, credit_card_number):
     total_odd = 0
-    for i in range(len(credit_card_number) - 1, -1, -2):
-        total_odd += int(credit_card_number[i])
+    for i in range(len(self.credit_card_number) - 1, -1, -2):
+        total_odd += int(self.credit_card_number[i])
     return total_odd
 
 
@@ -28,8 +29,8 @@ def odd_digits(credit_card_number):
     print("Card is invalid")
 
 
-def length_validity(credit_card_number):
-    if len(credit_card_number) < 13 or len(credit_card_number) > 19:
+def length_validity(self, credit_card_number):
+    if len(self, credit_card_number) < 13 or len(self, credit_card_number) > 19:
         return "invalid"
     else:
         return "valid"
@@ -37,4 +38,4 @@ def length_validity(credit_card_number):
 
 print("**Credit Card Number: " + card_number)
 print(f"**Credit Card Digit Length: {+len(card_number)}")
-print("**Card validity status: " + length_validity(card_number))
\ No newline at end of file
+print("**Card validity status: " + length_validity(card_number))