diff --git a/HelloStudents/HelloStudents.csproj b/HelloStudents/HelloStudents.csproj
index 401c607..730e5c4 100644
--- a/HelloStudents/HelloStudents.csproj
+++ b/HelloStudents/HelloStudents.csproj
@@ -46,6 +46,7 @@
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Student3099Ham.cs" />
+    <Compile Include="Student3199Ham.cs" />
     <Compile Include="StudentBase.cs" />
   </ItemGroup>
   <ItemGroup>
diff --git a/HelloStudents/Program.cs b/HelloStudents/Program.cs
index 0d6d98c..68f887b 100644
--- a/HelloStudents/Program.cs
+++ b/HelloStudents/Program.cs
@@ -24,6 +24,14 @@ static void Main(string[] args)
                     FirstName = "기훈", LastName = "함",
                     StudentNumber = 3099, BaseYear = 2020
                 });
+            students.Add(
+                new Student3199Ham()
+                {
+                    FirstName = "Gihun",
+                    LastName = "Ham",
+                    StudentNumber = 3199,
+                    BaseYear = 2021
+                });
             // 3101
             // 3102
             // 3103
diff --git a/HelloStudents/Student3199Ham.cs b/HelloStudents/Student3199Ham.cs
new file mode 100644
index 0000000..006f537
--- /dev/null
+++ b/HelloStudents/Student3199Ham.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HelloStudents
+{
+
+    class Student3199Ham : StudentBase
+    {
+        public override string Hello()
+        {
+            return "안녕? 나는 " + this + "님이셔라!";
+        }
+    }
+}