diff --git a/calculator.py b/calculator.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/calculator.py
@@ -0,0 +1 @@
+
diff --git a/vvs_calc.py b/vvs_calc.py
new file mode 100644
index 0000000..5823558
--- /dev/null
+++ b/vvs_calc.py
@@ -0,0 +1,5 @@
+def add(a, b):
+	return a + b
+
+def sub(a, b):
+	return a - b