C31231211111133131211113313231333133313331333131333133313331333132322331313231   >>    C3123121111113313121111331323133313331333133313133313331333133313232233131323   <<    C31231211111133131211113313231333133313331333131333133313331333132322331313233   >>      C31231211111133131211113313231333133313331333131333133313331333132322331313232   >>