B3311331313231311331322331333132313132313331323223313231121133132322132211   >>    B331133131323131133132233133313231313231333132322331323112113313232213221   <<    B3311331313231311331322331333132313132313331323223313231121133132322132213   >>      B3311331313231311331322331333132313132313331323223313231121133132322132212   >>