Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 157°C heat to the field 0x6
What is the temperature (rounded to whole numbers) in the field 4x0 after 150 iterations according to the Gauss-Seidel iteration

Field in the beginning

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

Field after 4 iterations (rounded after 4th iteration)

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	14	18	19	20	21	20	18	14	7
13	20	23	23	24	24	23	20	15	8
29	34	31	29	27	26	25	22	17	9
75	62	45	35	30	28	26	23	17	9
219	99	56	39	32	28	26	22	17	9
78	64	46	35	29	26	23	20	14	7
31	35	30	25	22	20	18	15	10	5
11	15	15	13	11	10	9	8	5	3

Temperature in field 4x0 after 150 iterations:

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	14	18	19	20	21	20	18	14	7
13	20	23	23	24	24	23	20	15	8
29	34	31	29	27	26	25	22	17	9
75	62	45	35	30	28	26	23	17	9
219	99	56	39	32	28	26	22	17	9
78	64	46	35	29	26	23	20	14	7
31	35	30	25	22	20	18	15	10	5
11	15	15	13	11	10	9	8	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	14	18	19	20	21	20	18	14	7
13	20	23	23	24	24	23	20	15	8
29	34	31	29	27	26	25	22	17	9
75	62	45	35	30	28	26	23	17	9
219	99	56	39	32	28	26	22	17	9
78	64	46	35	29	26	23	20	14	7
31	35	30	25	22	20	18	15	10	5
11	15	15	13	11	10	9	8	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	14	18	19	20	21	20	18	14	7
13	20	23	23	24	24	23	20	15	8
29	34	31	29	27	26	25	22	17	9
75	62	45	35	30	28	26	23	17	9
219	99	56	39	32	28	26	22	17	9
78	64	46	35	29	26	23	20	14	7
31	35	30	25	22	20	18	15	10	5
11	15	15	13	11	10	9	8	5	3