B33132212112331323223313211232333132313231311331333132323112323221   >>    B3313221211233132322331321123233313231323131133133313232311232322   <<    B33132212112331323223313211232333132313231311331333132323112323223   >>      B33132212112331323223313211232333132313231311331333132323112323222   >>