C111112111133131121133133313331323133313221323331333132313232233313331211   >>    C11111211113313112113313331333132313331322132333133313231323223331333121   <<    C111112111133131121133133313331323133313221323331333132313232233313331213   >>      C111112111133131121133133313331323133313221323331333132313232233313331212   >>