C1112212323132313132313132313232233131323231323133313231313331131   >>    C111221232313231313231313231323223313132323132313331323131333113   <<    C1112212323132313132313132313232233131323231323133313231313331133   >>      C1112212323132313132313132313232233131323231323133313231313331132   >>