B33113313132313113313223313331323132313233313331312111133133313221333132321111   >>    B3311331313231311331322331333132313231323331333131211113313331322133313232111   <<    B33113313132313113313223313331323132313233313331312111133133313221333132321113   >>      B33113313132313113313223313331323132313233313331312111133133313221333132321112   >>