C11112331312111112111133133313331333132322121111331311321311311211   >>    C1111233131211111211113313331333133313232212111133131132131131121   <<    C11112331312111112111133133313331333132322121111331311321311311213   >>      C11112331312111112111133133313331333132322121111331311321311311212   >>