B3311331313231311331322331333132313231333131323223313133313133313231331123311   >>    B331133131323131133132233133313231323133313132322331313331313331323133112331   <<    B3311331313231311331322331333132313231333131323223313133313133313231331123313   >>      B3311331313231311331322331333132313231333131323223313133313133313231331123312   >>