C111112111133131121133133313331333132333131131211113313221323211   >>    C11111211113313112113313331333133313233313113121111331322132321   <<    C111112111133131121133133313331333132333131131211113313221323213   >>      C111112111133131121133133313331333132333131131211113313221323212   >>