diff --git a/first_step.cpp b/first_step.cpp
new file mode 100644
index 0000000..64cd9b1
--- /dev/null
+++ b/first_step.cpp
@@ -0,0 +1,9 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    cout << "Hello world!" << endl;
+    return 0;
+}
diff --git a/show.cpp b/show.cpp
new file mode 100644
index 0000000..64cd9b1
--- /dev/null
+++ b/show.cpp
@@ -0,0 +1,9 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    cout << "Hello world!" << endl;
+    return 0;
+}