diff --git a/fugitives.ipynb b/fugitives.ipynb
new file mode 100644
index 0000000..79be30a
--- /dev/null
+++ b/fugitives.ipynb
@@ -0,0 +1,13 @@
+
+def count_bulls_and_cows(secret_code, guess):
+    """
+    비밀 코드와 추측한 숫자를 비교하여 불과 카우의 개수를 계산합니다.
+    """
+    bulls, cows = 0, 0
+    for i in range(4):
+        if guess[i] == secret_code[i]:
+            bulls += 1
+        elif guess[i] in secret_code:
+            cows += 1
+    return bulls, cows
+