r ="r" . = "b/
+/b++++r/r/
+r+
+
++=="; .r = ""; . = "
="; r = .; .r.; /r
r ="r" . = "b/
+/b++++r/r/
+r+
+
++=="; .r = ""; . = "
="; r = .; .r.; /r