diff --git a/main.py b/main.py
index 71a3166..1eb0402 100644
--- a/main.py
+++ b/main.py
@@ -1,6 +1,63 @@
-def solution():
-    pass
+def IP_identifier():
+    ip_adress = input('enter your IP adress in the format: x.x.x.x/x : ')
+    c = ''
+    Designation = ''
+    y = ip_adress.split('/')
+    y= y[0].split('.')
+    invalid = False
+    print('_______________________________')
+    try:
+        for i in y:
+            if  isinstance(int(i),int):
+                pass
+        if 0 < int(y[0]) <= 127:
+            c = "A"
+            if int(y[0]) == 127:
+                Designation = 'Special'
+            elif int(y[0]) == 10:
+                Designation = 'private'
+            else:
+                Designation = 'public'
+        elif 127 < int(y[0]) <= 191:
+            c = "B"
+            if int(y[0]) == 172 and int(y[1]) == 16 and 0 < int(y[2]) <= 31:
+                Designation = 'private'
+            else:
+                Designation = 'public'
+        elif 191 < int(y[0]) <= 223:
+            c = "C"
+            if int(y[0]) == 192 and int(y[1]) == 168:
+                Designation = 'private'
+            else:
+                Designation = 'public'
+        elif 223 < int(y[0]) <= 239:
+            c = "D"
+            Designation = 'Special'
+        elif 239 < int(y[0]) <= 255:
+            c = "E"
+            Designation = 'Special'
+        else:
+            invalid = True
+            print('invalid ip')
+            IP_identifier()
+        if not invalid:
+            print('Class: {} , Designation: {}'.format(c,Designation))
+            print('_______________________________')
+            again()
+    except:
+            print("this is not ip adress")
+            print('_______________________________')
+            IP_identifier()
 
 
-if __name__ == '__main__':
-    pass
+def again():
+        x = input('do you want to enter another IP ? enter Y/N  : ')
+        if x == 'N' or x == 'n':
+            pass
+        elif x == 'Y' or x == 'y':
+            IP_identifier()
+        else:
+            print('invalid input please choose Y or N ')
+            again()
+
+IP_identifier()
\ No newline at end of file