B3311331313231311331322331333132333132311211331333132333132322131121   >>    B331133131323131133132233133313233313231121133133313233313232213112   <<    B3311331313231311331322331333132333132311211331333132333132322131123   >>      B3311331313231311331322331333132333132311211331333132333132322131122   >>