C31231211113313121211113313331333132313331323312111133131133132233132313221221   >>    C3123121111331312121111331333133313231333132331211113313113313223313231322122   <<    C31231211113313121211113313331333132313331323312111133131133132233132313221223   >>      C31231211113313121211113313331333132313331323312111133131133132233132313221222   >>