diff --git a/modules/20-arithmetics/10-basics/ru/README.md b/modules/20-arithmetics/10-basics/ru/README.md
index cb5818a..4579ba0 100644
--- a/modules/20-arithmetics/10-basics/ru/README.md
+++ b/modules/20-arithmetics/10-basics/ru/README.md
@@ -34,8 +34,8 @@ int main() {
 
 ```cpp
 int main() {
-  std::cout << 8 / 2;
-  std::cout << 3 * 3 * 3;
+  std::cout << 8 / 2 << std::endl;
+  std::cout << 3 * 3 * 3 << std::endl;
 }
 ```