C31231211111133131211113313331323133313331311233132313232233131333132213113121   >>    C3123121111113313121111331333132313331333131123313231323223313133313221311312   <<    C31231211111133131211113313331323133313331311233132313232233131333132213113123   >>      C31231211111133131211113313331323133313331311233132313232233131333132213113122   >>