C111112111133131121133133313331333133313331323133313331323113121311   >>    C11111211113313112113313331333133313331333132313331333132311312131   <<    C111112111133131121133133313331333133313331323133313331323113121313   >>      C111112111133131121133133313331333133313331323133313331323113121312   >>