B3311331313231311331322331333132313331322331323133313331321123121111331223131   >>    B331133131323131133132233133313231333132233132313331333132112312111133122313   <<    B3311331313231311331322331333132313331322331323133313331321123121111331223133   >>      B3311331313231311331322331333132313331322331323133313331321123121111331223132   >>