B3311331313231311331322331333132313331322331323133313311211331322331211211   >>    B331133131323131133132233133313231333132233132313331331121133132233121121   <<    B3311331313231311331322331333132313331322331323133313311211331322331211213   >>      B3311331313231311331322331333132313331322331323133313311211331322331211212   >>