C111113331333132322331333133313331333132213331333132333112322221   >>    C11111333133313232233133313331333133313221333133313233311232222   <<    C111113331333132322331333133313331333132213331333132333112322223   >>      C111113331333132322331333133313331333132213331333132333112322222   >>