C31231211113313121211113313331323133313331333133313231333131133133313222333231   >>    C3123121111331312121111331333132313331333133313331323133313113313331322233323   <<    C31231211113313121211113313331323133313331333133313231333131133133313222333233   >>      C31231211113313121211113313331323133313331333133313231333131133133313222333232   >>