C11111333133313232233133313331333131133132221121111331323112111   >>    C1111133313331323223313331333133313113313222112111133132311211   <<    C11111333133313232233133313331333131133132221121111331323112113   >>      C11111333133313232233133313331333131133132221121111331323112112   >>