C31231211113313121211113313331333132313331323312111133131133133313331322312121   >>    C3123121111331312121111331333133313231333132331211113313113313331333132231212   <<    C31231211113313121211113313331333132313331323312111133131133133313331322312123   >>      C31231211113313121211113313331333132313331323312111133131133133313331322312122   >>