diff --git a/tetsuya.c b/tetsuya.c
new file mode 100644
index 0000000000000000000000000000000000000000..21f11d34e7af739aecdb5b8f384fa9a17db28041
--- /dev/null
+++ b/tetsuya.c
@@ -0,0 +1,5 @@
+#include <stdio.h>
+
+int main(void) {
+    printf("hello from Tetsuya!\n");
+}
\ No newline at end of file