C11111333133313232233133313331333131133132221121111331311331323312321   >>    C1111133313331323223313331333133313113313222112111133131133132331232   <<    C11111333133313232233133313331333131133132221121111331311331323312323   >>      C11111333133313232233133313331333131133132221121111331311331323312322   >>