C123211131133132233131323132313233313233313132313133313232331111   >>    C12321113113313223313132313231323331323331313231313331323233111   <<    C123211131133132233131323132313233313233313132313133313232331113   >>      C123211131133132233131323132313233313233313132313133313232331112   >>