C31231211111133131211113313231333133313331323213231323132313232233121   >>    C3123121111113313121111331323133313331333132321323132313231323223312   <<    C31231211111133131211113313231333133313331323213231323132313232233123   >>      C31231211111133131211113313231333133313331323213231323132313232233122   >>