C21221212121211331322132313132313231313232233132313223313113313111123231   >>    C2122121212121133132213231313231323131323223313231322331311331311112323   <<    C21221212121211331322132313132313231313232233132313223313113313111123233   >>      C21221212121211331322132313132313231313232233132313223313113313111123232   >>