C21221212121211331322132313132313231313232233132313223313231323221333311   >>    C2122121212121133132213231313231323131323223313231322331323132322133331   <<    C21221212121211331322132313132313231313232233132313223313231323221333313   >>      C21221212121211331322132313132313231313232233132313223313231323221333312   >>