B33113313132313113313223313331323133313231313232233132322133313113211   >>    B3311331313231311331322331333132313331323131323223313232213331311321   <<    B33113313132313113313223313331323133313231313232233132322133313113213   >>      B33113313132313113313223313331323133313231313232233132322133313113212   >>