C31231211111133131211113313331333133313331323133313221211113313231333132332321   >>    C3123121111113313121111331333133313331333132313331322121111331323133313233232   <<    C31231211111133131211113313331333133313331323133313221211113313231333132332323   >>      C31231211111133131211113313331333133313331323133313221211113313231333132332322   >>