diff --git a/ma5/rsa/rsa.rb b/ma5/rsa/rsa.rb
index 46dcc8b..04136d1 100644
--- a/ma5/rsa/rsa.rb
+++ b/ma5/rsa/rsa.rb
@@ -35,6 +35,10 @@ module RSA
 			@d = RSA.modinv(@e, @phi)
 		end
 
+		def inspect
+			"n=#{@n}"
+		end
+
 		def pubkey
 			return @e, @n
 		end
diff --git a/ma5/rsa/test.rb b/ma5/rsa/test.rb
index 57700bd..ba4b8e4 100755
--- a/ma5/rsa/test.rb
+++ b/ma5/rsa/test.rb
@@ -36,6 +36,7 @@ puts "p1=#{p1}, p2=#{p2}"
 puts
 
 key = RSA::Key.new(p1, p2)
+puts key.inspect
 print "Message to be encrypted: "
 msg = gets.chomp