diff --git a/main.py b/main.py
index 71a3166..4e6b7a7 100644
--- a/main.py
+++ b/main.py
@@ -1,6 +1,37 @@
-def solution():
-    pass
+def solution(ip_address):
+    ip_address = ip_address.split(".")
+
+    if 0 < int(ip_address[0]) <= 127:
+        if int(ip_address[0]) == 10 and (0 <= int(ip_address[1]) <= 255) and\
+                (0 <= int(ip_address[1]) <= 255) and (0 <= int(ip_address[3].split("/")[0]) <= 255):
+            print("Class: A, Designation: Private")
+        elif int(ip_address[1]) == 0 and int(ip_address[2]) == 0 and int(ip_address[3].split("/")[0]) == 0:
+            print("Class: A, Designation: Public")
+        elif int(ip_address[0]) == 127 and (0 <= int(ip_address[1]) <= 255) and\
+                (0 <= int(ip_address[1]) <= 255) and (1 <= int(ip_address[3].split("/")[0]) <= 255):
+            print("Class: A, Designation: Special")
+
+    elif 128 <= int(ip_address[0]) <= 191:
+        if int(ip_address[0]) == 172 and (16 <= int(ip_address[1]) <= 31):
+            print("Class: B, Designation: Private")
+        elif (0 <= int(ip_address[1]) <= 255) and (int(ip_address[2]) == 0) and\
+                (int(ip_address[3].split("/")[0]) == 0):
+            print("Class: B, Designation: Public")
+
+    elif 192 <= int(ip_address[0]) <= 223:
+        if int(ip_address[0]) == 192 and int(ip_address[1]) == 168:
+            print("Class: C, Designation: Private")
+        elif (0 <= int(ip_address[1]) <= 255) and (0 <= int(ip_address[2]) <= 255) and\
+                (int(ip_address[3].split("/")[0]) == 0):
+            print("Class: C, Designation: Public")
+
+    elif 224 <= int(ip_address[0]) <= 239:
+        print("Class: D")
+
+    elif 240 <= int(ip_address[0]) <= 255:
+        print("Class: E")
 
 
 if __name__ == '__main__':
-    pass
+    user_ip = input("Enter your IP Address: ")
+    solution(user_ip)