B3311331313231311331322331333132313331322331323133313311231323221   >>    B331133131323131133132233133313231333132233132313331331123132322   <<    B3311331313231311331322331333132313331322331323133313311231323223   >>      B3311331313231311331322331333132313331322331323133313311231323222   >>