B331133131323131133132233133313231323222233132313232223132322311   >>    B33113313132313113313223313331323132322223313231323222313232231   <<    B331133131323131133132233133313231323222233132313232223132322313   >>      B331133131323131133132233133313231323222233132313232223132322312   >>