B33113313132313113313223313331323132313233313331313331333132313232233312121121   >>    B3311331313231311331322331333132313231323331333131333133313231323223331212112   <<    B33113313132313113313223313331323132313233313331313331333132313232233312121123   >>      B33113313132313113313223313331323132313233313331313331333132313232233312121122   >>