diff --git a/arithmetic.cpp b/arithmetic.cpp
new file mode 100644
index 0000000..d6bcd30
--- /dev/null
+++ b/arithmetic.cpp
@@ -0,0 +1,7 @@
+
+#include "arithmetic.h"
+int add(int a, int b)
+{
+int c = a + b;
+return c;
+}
diff --git a/arithmetic.h b/arithmetic.h
new file mode 100644
index 0000000..c718493
--- /dev/null
+++ b/arithmetic.h
@@ -0,0 +1 @@
+int add(int, int);