diff --git a/main.py b/main.py
index 71a3166..99047c0 100644
--- a/main.py
+++ b/main.py
@@ -1,6 +1,41 @@
 def solution():
-    pass
-
+    ip_address = input('enter your ip address: ')
+    ip = ip_address.split('/')
+    ip_test = ip[0].split('.')
 
+    part1 = int(ip_test[0])
+    part2 = int(ip_test[1])
+    part3 = int(ip_test[2])
+    part4 = int(ip_test[3])
+    if part1== 10:
+        Class = "A"
+        designation = "private"
+    elif part1== 127  and 1<=part4<=255 :
+        Class = "A"
+        designation = "special"    
+    elif part1== 172 and 16<=part1<=31 :
+        Class = "B"
+        designation = "private"   
+    elif part1== 192 and part2== 168:
+        Class = "C"
+        designation = "private"     
+    elif part1>=1 and part1<=127:
+        Class = "A"
+        designation = "public"  
+    elif part1>=128 and part1<=192 :
+        Class = "B"
+        designation = "public"    
+    elif part1>=192 and part1<=224 :
+        Class = "C"
+        designation = "public"    
+    elif part1>=224 and part1<=240 :
+        Class = "D"
+        designation = "public"        
+    elif part1>=240 and part1<=255 :
+        Class = "class: E" 
+        designation = "reserved"     
+    else:
+        raise ValueError
+    print (f'class: {Class} , designation: {designation}')
 if __name__ == '__main__':
-    pass
+    solution()