C111113331333132322331333133313331311331323133313221211111131233231   >>    C11111333133313232233133313331333131133132313331322121111113123323   <<    C111113331333132322331333133313331311331323133313221211111131233233   >>      C111113331333132322331333133313331311331323133313221211111131233232   >>