diff --git a/README.md b/README.md
index 117c69b..939848b 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # Lab1_PhotoPlethysmoGraphy
 
-The basic implementation of PPG
+The best implementation of PPG
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..8935eff
--- /dev/null
+++ b/makefile
@@ -0,0 +1,7 @@
+all: ppg
+	g++ ppg.o -o ppg.exe
+ppg: ppg.cpp
+	g++ -c ppg.cpp
+clean:
+	rm *.o
+	rm *.exe
diff --git a/ppg.cpp b/ppg.cpp
new file mode 100644
index 0000000..f4a7859
--- /dev/null
+++ b/ppg.cpp
@@ -0,0 +1,7 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+  cout << "Hello World!";
+  return 0;
+}