C3123121111331312121111331311331333133313232233131122112323332321   >>    C312312111133131212111133131133133313331323223313112211232333232   <<    C3123121111331312121111331311331333133313232233131122112323332323   >>      C3123121111331312121111331311331333133313232233131122112323332322   >>