C11112331312111112111133133313331333132322121111331333112111321   >>    C1111233131211111211113313331333133313232212111133133311211132   <<    C11112331312111112111133133313331333132322121111331333112111323   >>      C11112331312111112111133133313331333132322121111331333112111322   >>