B3311331313231311331322331333132313331322331323133313311232321123123131   >>    B331133131323131133132233133313231333132233132313331331123232112312313   <<    B3311331313231311331322331333132313331322331323133313311232321123123133   >>      B3311331313231311331322331333132313331322331323133313311232321123123132   >>