B331133131323131133132233133313132313231313331333133313231323221212121   >>    B33113313132313113313223313331313231323131333133313331323132322121212   <<    B331133131323131133132233133313132313231313331333133313231323221212123   >>      B331133131323131133132233133313132313231313331333133313231323221212122   >>