C111112111133131121133133313331333121111133313331333133311212121122112321   >>    C11111211113313112113313331333133312111113331333133313331121212112211232   <<    C111112111133131121133133313331333121111133313331333133311212121122112323   >>      C111112111133131121133133313331333121111133313331333133311212121122112322   >>