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 187°C heat to the field 1x6
What is the temperature (rounded to whole numbers) in the field 7x9 after 87 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	8	6	3
5	9	11	12	12	12	12	11	8	4
8	16	18	17	16	15	14	12	9	5
21	42	38	29	22	18	16	14	10	5
53	112	77	47	30	22	18	15	11	5
98	297	127	63	37	25	19	15	10	5
59	120	84	52	33	23	17	13	9	5
29	53	46	34	24	17	13	10	7	3
12	21	21	16	12	9	7	5	4	2

Temperature in field 7x9 after 87 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	8	6	3
5	9	11	12	12	12	12	11	8	4
8	16	18	17	16	15	14	12	9	5
21	42	38	29	22	18	16	14	10	5
53	112	77	47	30	22	18	15	11	5
98	297	127	63	37	25	19	15	10	5
59	120	84	52	33	23	17	13	9	5
29	53	46	34	24	17	13	10	7	3
12	21	21	16	12	9	7	5	4	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	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	8	6	3
5	9	11	12	12	12	12	11	8	4
8	16	18	17	16	15	14	12	9	5
21	42	38	29	22	18	16	14	10	5
53	112	77	47	30	22	18	15	11	5
98	297	127	63	37	25	19	15	10	5
59	120	84	52	33	23	17	13	9	5
29	53	46	34	24	17	13	10	7	3
12	21	21	16	12	9	7	5	4	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	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	8	6	3
5	9	11	12	12	12	12	11	8	4
8	16	18	17	16	15	14	12	9	5
21	42	38	29	22	18	16	14	10	5
53	112	77	47	30	22	18	15	11	5
98	297	127	63	37	25	19	15	10	5
59	120	84	52	33	23	17	13	9	5
29	53	46	34	24	17	13	10	7	3
12	21	21	16	12	9	7	5	4	2