diff --git a/src/src/kimgunwoo/Case1.java b/src/src/kimgunwoo/Case1.java
new file mode 100644
index 0000000..74c3c34
--- /dev/null
+++ b/src/src/kimgunwoo/Case1.java
@@ -0,0 +1,28 @@
+package kimgunwoo;
+
+import java.util.Scanner;
+
+public class Case1 {
+    public void gameStart(int randomNum){
+    Scanner scanner = new Scanner(System.in);
+    int a = 0;
+        do{
+            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;
+            }
+            a = a + 1 ;
+        }while (a<0);
+    }
+
+
+}
+
+