C111123313121111121111331333133313331333131233133313232212133313233221   >>    C11112331312111112111133133313331333133313123313331323221213331323322   <<    C111123313121111121111331333133313331333131233133313232212133313233223   >>      C111123313121111121111331333133313331333131233133313232212133313233222   >>