C2122121212121133132213231313231323131323223313231322331312323223321   >>    C212212121212113313221323131323132313132322331323132233131232322332   <<    C2122121212121133132213231313231323131323223313231322331312323223323   >>      C2122121212121133132213231313231323131323223313231322331312323223322   >>