B3311331313231311331322331333132313231333131323223313331323131121323221   >>    B331133131323131133132233133313231323133313132322331333132313112132322   <<    B3311331313231311331322331333132313231333131323223313331323131121323223   >>      B3311331313231311331322331333132313231333131323223313331323131121323222   >>