B3311331313231311331322331333132313331322331323133313331333133321123133131   >>    B331133131323131133132233133313231333132233132313331333133313332112313313   <<    B3311331313231311331322331333132313331322331323133313331333133321123133133   >>      B3311331313231311331322331333132313331322331323133313331333133321123133132   >>