C121212231313232233131323223313231323131111223132313231323132322132313221   >>    C12121223131323223313132322331323132313111122313231323132313232213231322   <<    C121212231313232233131323223313231323131111223132313231323132322132313223   >>      C121212231313232233131323223313231323131111223132313231323132322132313222   >>