C21221212121211331322132313132313231313232233132313223313232313231321   >>    C2122121212121133132213231313231323131323223313231322331323231323132   <<    C21221212121211331322132313132313231313232233132313223313232313231323   >>      C21221212121211331322132313132313231313232233132313223313232313231322   >>