C21221212121211331322132313132313231313232233132313223313232332323321   >>    C2122121212121133132213231313231323131323223313231322331323233232332   <<    C21221212121211331322132313132313231313232233132313223313232332323323   >>      C21221212121211331322132313132313231313232233132313223313232332323322   >>