12. To prevent the spread of the coronavirus, people need to maintain a distance of more than 1 meter. A company has a seating arrangement of 6 rows and 6 columns, and the distance between adjacent seats exceeds 1 meter. To ensure greater safety, the company stipulates: when holding meetings in this conference room, there should not be 5 people seated consecutively in any row or column. According to the requirements, the maximum number of people that can be seated in the conference room is $\qquad$
With the worsening of the epidemic, the company's requirements have become stricter, stipulating that there should not be 4 people seated consecutively in any row or column. In this case, the maximum number of people that can be seated in the conference room is $\qquad$.
【Answer】(1) 29; (2) 28
【Explanation】Cyclic coloring. This problem is equivalent to whether a $6 \times 6$ square can be covered by $5 \times 1$ and $4 \times 1$ rectangles. Cyclic coloring can be used, where any 5 adjacent numbers must be 1-5, and (1-4) with the same number removed can also satisfy the condition.
(1) Cyclic coloring with 1-5 is as follows:
Counting 1 has 8, 2 has 7, 3 has 7, 4 has 7, 5 has 7. Removing any one type will satisfy the condition. To leave the most, remove the least, for example, remove 2, and the remaining numbers will definitely not have 5 consecutive numbers.

Counting 1 has 9, 2 has 10, 3 has 9, 4 has 8, removing any one type can satisfy the condition. To leave the most, remove the least, which can be 1, leaving $36-8=28$ (numbers)