diff --git a/build.py b/build.py
index 3171bb0..f1a85b2 100644
--- a/build.py
+++ b/build.py
@@ -1,4 +1,7 @@
-def solution(array):
+import numpy as np
+def solution(arr):
     """
     Enter your code here
-    """
\ No newline at end of file
+    """
+    return np.array(arr)[::-1]
+#print solution([1,2,3,4])
diff --git a/build.pyc b/build.pyc
new file mode 100644
index 0000000..2f1ce9e
Binary files /dev/null and b/build.pyc differ
diff --git a/tests/__init__.pyc b/tests/__init__.pyc
new file mode 100644
index 0000000..3ab7ac8
Binary files /dev/null and b/tests/__init__.pyc differ
diff --git a/tests/test_solution.pyc b/tests/test_solution.pyc
new file mode 100644
index 0000000..fec70ec
Binary files /dev/null and b/tests/test_solution.pyc differ