diff --git a/bank.py b/bank.py
new file mode 100644
index 0000000..3ae5ba0
--- /dev/null
+++ b/bank.py
@@ -0,0 +1,15 @@
+import time
+class Bank:
+    __clients=[]
+    def __init__(self,name):
+        self.name=name
+    def add_clients(self,client):
+        self.__clients.append(client)
+    def authentication(self,name,account_number):
+        for i in range(len(self.__clients)):
+            if name == self.__clients[i]['name'] and account_number == self.__clients[i]['account_number']:
+                time.sleep(1)
+                print("Authentication successful!")
+                return self.__clients[i]
+    def getclients(self):
+        return self.__clients 
\ No newline at end of file