Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 16°C. We apply continuously 84°C heat to the field 7x5
What is the temperature (rounded to whole numbers) in the field 6x6 after 88 iterations according to the Gauss-Seidel iteration

Field in the beginning

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

Field after 4 iterations (rounded after 4th iteration)

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	9	7	4
5	8	10	11	12	12	13	14	11	6
5	9	11	13	13	16	22	27	21	11
5	9	12	13	16	23	39	60	39	18
5	9	12	14	18	30	62	144	62	25
5	9	12	14	18	27	44	65	43	20
5	8	11	12	15	20	28	34	26	13
4	6	8	9	11	14	17	18	15	8
2	3	4	5	6	7	8	8	7	4

Temperature in field 6x6 after 88 iterations:

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	9	7	4
5	8	10	11	12	12	13	14	11	6
5	9	11	13	13	16	22	27	21	11
5	9	12	13	16	23	39	60	39	18
5	9	12	14	18	30	62	144	62	25
5	9	12	14	18	27	44	65	43	20
5	8	11	12	15	20	28	34	26	13
4	6	8	9	11	14	17	18	15	8
2	3	4	5	6	7	8	8	7	4

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	9	7	4
5	8	10	11	12	12	13	14	11	6
5	9	11	13	13	16	22	27	21	11
5	9	12	13	16	23	39	60	39	18
5	9	12	14	18	30	62	144	62	25
5	9	12	14	18	27	44	65	43	20
5	8	11	12	15	20	28	34	26	13
4	6	8	9	11	14	17	18	15	8
2	3	4	5	6	7	8	8	7	4

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	9	7	4
5	8	10	11	12	12	13	14	11	6
5	9	11	13	13	16	22	27	21	11
5	9	12	13	16	23	39	60	39	18
5	9	12	14	18	30	62	144	62	25
5	9	12	14	18	27	44	65	43	20
5	8	11	12	15	20	28	34	26	13
4	6	8	9	11	14	17	18	15	8
2	3	4	5	6	7	8	8	7	4