B33113313132313113313223313331323133313231313232233131333131112121   >>    B3311331313231311331322331333132313331323131323223313133313111212   <<    B33113313132313113313223313331323133313231313232233131333131112123   >>      B33113313132313113313223313331323133313231313232233131333131112122   >>