C11112331312111112111133133313331333132323133313331333132233131111233131   >>    C1111233131211111211113313331333133313232313331333133313223313111123313   <<    C11112331312111112111133133313331333132323133313331333132233131111233133   >>      C11112331312111112111133133313331333132323133313331333132233131111233132   >>