B3311331313231311331322331333132313132313331323223313231323211111   >>    B331133131323131133132233133313231313231333132322331323132321111   <<    B3311331313231311331322331333132313132313331323223313231323211113   >>      B3311331313231311331322331333132313132313331323223313231323211112   >>