diff --git a/parser/c_compiler/test/test.c b/parser/c_compiler/test/test.c
--- a/parser/c_compiler/test/test.c
+++ b/parser/c_compiler/test/test.c
@@ -6,6 +6,7 @@
     FILE *fp;
 
     printf ("Hello, world\n");
+    printf ("....\v....\f....\n");
 
     return EXIT_SUCCESS;
 }