C11112331312111112111133133313331333132323133313331333132233131121133122311331   >>    C1111233131211111211113313331333133313232313331333133313223313112113312231133   <<    C11112331312111112111133133313331333132323133313331333132233131121133122311333   >>      C11112331312111112111133133313331333132323133313331333132233131121133122311332   >>