Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 21°C. We apply continuously 177°C heat to the field 6x2
What is the temperature (rounded to whole numbers) in the field 5x8 after 117 iterations according to the Gauss-Seidel iteration

Field in the beginning

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

Field after 4 iterations (rounded after 4th iteration)

3	5	6	7	11	23	37	29	17	8
5	8	10	14	29	64	111	72	39	17
6	10	14	22	47	116	292	124	57	24
7	12	16	23	42	80	128	87	50	23
7	12	16	22	33	51	67	55	37	18
7	12	16	20	27	35	41	37	27	14
7	12	16	19	22	26	28	26	20	10
6	11	14	16	18	20	21	19	14	8
5	8	11	12	13	14	14	13	10	5
2	4	6	6	7	7	7	6	5	2

Temperature in field 5x8 after 117 iterations:

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	11	23	37	29	17	8
5	8	10	14	29	64	111	72	39	17
6	10	14	22	47	116	292	124	57	24
7	12	16	23	42	80	128	87	50	23
7	12	16	22	33	51	67	55	37	18
7	12	16	20	27	35	41	37	27	14
7	12	16	19	22	26	28	26	20	10
6	11	14	16	18	20	21	19	14	8
5	8	11	12	13	14	14	13	10	5
2	4	6	6	7	7	7	6	5	2

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	11	23	37	29	17	8
5	8	10	14	29	64	111	72	39	17
6	10	14	22	47	116	292	124	57	24
7	12	16	23	42	80	128	87	50	23
7	12	16	22	33	51	67	55	37	18
7	12	16	20	27	35	41	37	27	14
7	12	16	19	22	26	28	26	20	10
6	11	14	16	18	20	21	19	14	8
5	8	11	12	13	14	14	13	10	5
2	4	6	6	7	7	7	6	5	2

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	11	23	37	29	17	8
5	8	10	14	29	64	111	72	39	17
6	10	14	22	47	116	292	124	57	24
7	12	16	23	42	80	128	87	50	23
7	12	16	22	33	51	67	55	37	18
7	12	16	20	27	35	41	37	27	14
7	12	16	19	22	26	28	26	20	10
6	11	14	16	18	20	21	19	14	8
5	8	11	12	13	14	14	13	10	5
2	4	6	6	7	7	7	6	5	2