B331133131323131133132233133313231323223313231313331333132313231311221123221121   >>    B33113313132313113313223313331323132322331323131333133313231323131122112322112   <<    B331133131323131133132233133313231323223313231313331333132313231311221123221123   >>      B331133131323131133132233133313231323223313231313331333132313231311221123221122   >>