B3311331313231311331322331333132313231333131323223313231333132333112312323221   >>    B331133131323131133132233133313231323133313132322331323133313233311231232322   <<    B3311331313231311331322331333132313231333131323223313231333132333112312323223   >>      B3311331313231311331322331333132313231333131323223313231333132333112312323222   >>