B3311331313231311331322331333132313331323131323223313113313231323132212112331   >>    B331133131323131133132233133313231333132313132322331311331323132313221211233   <<    B3311331313231311331322331333132313331323131323223313113313231323132212112333   >>      B3311331313231311331322331333132313331323131323223313113313231323132212112332   >>