diff --git a/rectanglearea.py b/rectanglearea.py
new file mode 100644
index 0000000..f35db94
--- /dev/null
+++ b/rectanglearea.py
@@ -0,0 +1,2 @@
+x1, y1, x2, y2 = map(float, input().split())
+print(abs((x1 - x2) * (y1 - y2)))