B3311331313231311331322331333132313331322331323133313331123313122321   >>    B331133131323131133132233133313231333132233132313331333112331312232   <<    B3311331313231311331322331333132313331322331323133313331123313122323   >>      B3311331313231311331322331333132313331322331323133313331123313122322   >>