C11112331312111112111133133313331333132322121111331311321311311221   >>    C1111233131211111211113313331333133313232212111133131132131131122   <<    C11112331312111112111133133313331333132322121111331311321311311223   >>      C11112331312111112111133133313331333132322121111331311321311311222   >>