B33113313132313113313223313331323132313233313331311331323223312121   >>    B3311331313231311331322331333132313231323331333131133132322331212   <<    B33113313132313113313223313331323132313233313331311331323223312123   >>      B33113313132313113313223313331323132313233313331311331323223312122   >>