C111113331333132322331333133313331333132313331333133112111133121211   >>    C11111333133313232233133313331333133313231333133313311211113312121   <<    C111113331333132322331333133313331333132313331333133112111133121213   >>      C111113331333132322331333133313331333132313331333133112111133121212   >>