B3311331313231311331322331333132313331322331323133313311231323231   >>    B331133131323131133132233133313231333132233132313331331123132323   <<    B3311331313231311331322331333132313331322331323133313311231323233   >>      B3311331313231311331322331333132313331322331323133313311231323232   >>