Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 159°C heat to the field 2x5
What is the temperature (rounded to whole numbers) in the field 8x3 after 141 iterations according to the Gauss-Seidel iteration

Field in the beginning

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

Field after 4 iterations (rounded after 4th iteration)

3	5	7	7	8	8	8	7	5	3
5	9	12	14	14	14	14	12	9	5
7	14	21	22	21	20	18	16	12	6
11	28	45	41	32	26	22	19	14	7
22	60	107	75	49	35	27	21	15	8
34	103	266	119	64	41	30	23	16	8
28	69	116	83	55	38	29	22	16	8
18	40	58	52	41	31	25	20	14	7
11	22	30	30	26	22	18	14	10	5
5	10	13	14	13	11	9	7	5	2

Temperature in field 8x3 after 141 iterations:

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	12	14	14	14	14	12	9	5
7	14	21	22	21	20	18	16	12	6
11	28	45	41	32	26	22	19	14	7
22	60	107	75	49	35	27	21	15	8
34	103	266	119	64	41	30	23	16	8
28	69	116	83	55	38	29	22	16	8
18	40	58	52	41	31	25	20	14	7
11	22	30	30	26	22	18	14	10	5
5	10	13	14	13	11	9	7	5	2

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	12	14	14	14	14	12	9	5
7	14	21	22	21	20	18	16	12	6
11	28	45	41	32	26	22	19	14	7
22	60	107	75	49	35	27	21	15	8
34	103	266	119	64	41	30	23	16	8
28	69	116	83	55	38	29	22	16	8
18	40	58	52	41	31	25	20	14	7
11	22	30	30	26	22	18	14	10	5
5	10	13	14	13	11	9	7	5	2

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	12	14	14	14	14	12	9	5
7	14	21	22	21	20	18	16	12	6
11	28	45	41	32	26	22	19	14	7
22	60	107	75	49	35	27	21	15	8
34	103	266	119	64	41	30	23	16	8
28	69	116	83	55	38	29	22	16	8
18	40	58	52	41	31	25	20	14	7
11	22	30	30	26	22	18	14	10	5
5	10	13	14	13	11	9	7	5	2