B331133131323131133132233133313231323222233132313232233131231211   >>    B33113313132313113313223313331323132322223313231323223313123121   <<    B331133131323131133132233133313231323222233132313232233131231213   >>      B331133131323131133132233133313231323222233132313232233131231212   >>