C11112331312111112111133133313331333133313331312111111331333132233221   >>    C1111233131211111211113313331333133313331333131211111133133313223322   <<    C11112331312111112111133133313331333133313331312111111331333132233223   >>      C11112331312111112111133133313331333133313331312111111331333132233222   >>