diff --git a/calculator.cpp b/calculator.cpp
index 7e4c545..a014fe5 100644
--- a/calculator.cpp
+++ b/calculator.cpp
@@ -10,7 +10,11 @@ int Calculator::Sub (double a, double b)
     return Add (a, -b);
 }
 
-int Calculator::Mul (double a, double b)
+int
+Calculator::Mul(double  a,
+                double  b)
 {
-    return a * b + 0.5;
+    return a
+         * b
+         + 0.5;
 }