diff --git a/oddmanout.py b/oddmanout.py
new file mode 100644
index 0000000..f8d9172
--- /dev/null
+++ b/oddmanout.py
@@ -0,0 +1,11 @@
+def test_case(i):
+    _ = int(input())
+    cs = list(map(int, input().split()))
+    for c in cs:
+        if cs.count(c) == 1:
+            print(f"Case #{i+1}: {c}")
+            return
+
+n = int(input())
+for i in range(n):
+    test_case(i)
\ No newline at end of file