C11112331312111112111133133313331333132322121111331323112331333211331333213331   >>    C1111233131211111211113313331333133313232212111133132311233133321133133321333   <<    C11112331312111112111133133313331333132322121111331323112331333211331333213333   >>      C11112331312111112111133133313331333132322121111331323112331333211331333213332   >>