diff --git a/add.c b/add.c
new file mode 100644
index 0000000..e965047
--- /dev/null
+++ b/add.c
@@ -0,0 +1 @@
+Hello
diff --git a/adding.c b/adding.c
new file mode 100644
index 0000000..e965047
--- /dev/null
+++ b/adding.c
@@ -0,0 +1 @@
+Hello
diff --git a/minus.c b/minus.c
new file mode 100644
index 0000000..e965047
--- /dev/null
+++ b/minus.c
@@ -0,0 +1 @@
+Hello