B3311331313231311331322331333132313331322331323133313331333231333133321123131   >>    B331133131323131133132233133313231333132233132313331333133323133313332112313   <<    B3311331313231311331322331333132313331322331323133313331333231333133321123133   >>      B3311331313231311331322331333132313331322331323133313331333231333133321123132   >>