B3311331313231311331322331333132313331323131323223313231333132333112331123221   >>    B331133131323131133132233133313231333132313132322331323133313233311233112322   <<    B3311331313231311331322331333132313331323131323223313231333132333112331123223   >>      B3311331313231311331322331333132313331323131323223313231333132333112331123222   >>