B3311331313231311331322331333132313233313132333112331323133313231333132231   >>    B331133131323131133132233133313231323331313233311233132313331323133313223   <<    B3311331313231311331322331333132313233313132333112331323133313231333132233   >>      B3311331313231311331322331333132313233313132333112331323133313231333132232   >>