B3311331313231311331322331333132313231323211133313232213231323321   >>    B331133131323131133132233133313231323132321113331323221323132332   <<    B3311331313231311331322331333132313231323211133313232213231323323   >>      B3311331313231311331322331333132313231323211133313232213231323322   >>