diff --git a/sum.py b/sum.py
new file mode 100644
index 0000000..6b14f23
--- /dev/null
+++ b/sum.py
@@ -0,0 +1,5 @@
+from voussoirkit import pipeable
+
+
+total = sum(float(x) for x in pipeable.go() if x.strip())
+pipeable.output(f'{total}\n')