C123211131133132233131323132313233313233313132313133313232313111   >>    C12321113113313223313132313231323331323331313231313331323231311   <<    C123211131133132233131323132313233313233313132313133313232313113   >>      C123211131133132233131323132313233313233313132313133313232313112   >>