B331133131323131133132233133313223313113313223313331323132313232223221   >>    B33113313132313113313223313331322331311331322331333132313231323222322   <<    B331133131323131133132233133313223313113313223313331323132313232223223   >>      B331133131323131133132233133313223313113313223313331323132313232223222   >>