C21221212121211331322132313132313231313232233132313223313231333132332321   >>    C2122121212121133132213231313231323131323223313231322331323133313233232   <<    C21221212121211331322132313132313231313232233132313223313231333132332323   >>      C21221212121211331322132313132313231313232233132313223313231333132332322   >>