diff --git a/src/src/susik/Case1.java b/src/src/susik/Case1.java
new file mode 100644
index 0000000..f031931
--- /dev/null
+++ b/src/src/susik/Case1.java
@@ -0,0 +1,25 @@
+package susik;
+
+import java.util.Scanner;
+
+public class Case1 {
+    public void gameStart(int randomNum){
+        //여기에 작성해 주세요
+        Scanner scanner = new Scanner(System.in);
+
+        while(true){
+            Integer userInput = Integer.parseInt(scanner.nextLine());
+            if(randomNum < userInput){
+                System.out.println("DOWN");
+            }else if(randomNum > userInput) {
+                System.out.println("UP");
+            } else{
+                System.out.println("Good!");
+                break;
+            }
+        }
+
+    }
+}
+
+