diff --git a/build.py b/build.py
index ca073ba..26d16be 100644
--- a/build.py
+++ b/build.py
@@ -1,4 +1,3 @@
 def solution(array):
-    """
-    Enter code here
-    """
\ No newline at end of file
+    array[1:len(array)-1,1:len(array)-1]=0
+    return array
diff --git a/build.pyc b/build.pyc
new file mode 100644
index 0000000..854bd2c
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..30bd840
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..25b39ab
Binary files /dev/null and b/tests/test_solution.pyc differ