C21221212121211331322132313132313132313232233132313223313233313231333132312131   >>    C2122121212121133132213231313231313231323223313231322331323331323133313231213   <<    C21221212121211331322132313132313132313232233132313223313233313231333132312133   >>      C21221212121211331322132313132313132313232233132313223313233313231333132312132   >>