C111112111133131121133133313331333133313331323133313331333121313111   >>    C11111211113313112113313331333133313331333132313331333133312131311   <<    C111112111133131121133133313331333133313331323133313331333121313113   >>      C111112111133131121133133313331333133313331323133313331333121313112   >>