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 167°C heat to the field 2x3
What is the temperature (rounded to whole numbers) in the field 7x5 after 85 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	8	13	13	12	10	9	7	5	3
9	25	41	36	27	21	17	13	10	5
22	60	108	75	47	32	24	18	13	6
35	106	277	122	64	40	28	21	15	7
29	71	121	86	57	39	29	23	16	8
20	43	62	56	44	35	28	22	16	8
14	27	37	37	34	29	25	21	15	8
10	18	24	26	25	24	22	18	13	7
6	12	15	17	17	17	16	13	9	5
3	6	7	8	9	9	8	7	5	2

Temperature in field 7x5 after 85 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	8	13	13	12	10	9	7	5	3
9	25	41	36	27	21	17	13	10	5
22	60	108	75	47	32	24	18	13	6
35	106	277	122	64	40	28	21	15	7
29	71	121	86	57	39	29	23	16	8
20	43	62	56	44	35	28	22	16	8
14	27	37	37	34	29	25	21	15	8
10	18	24	26	25	24	22	18	13	7
6	12	15	17	17	17	16	13	9	5
3	6	7	8	9	9	8	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	8	13	13	12	10	9	7	5	3
9	25	41	36	27	21	17	13	10	5
22	60	108	75	47	32	24	18	13	6
35	106	277	122	64	40	28	21	15	7
29	71	121	86	57	39	29	23	16	8
20	43	62	56	44	35	28	22	16	8
14	27	37	37	34	29	25	21	15	8
10	18	24	26	25	24	22	18	13	7
6	12	15	17	17	17	16	13	9	5
3	6	7	8	9	9	8	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	8	13	13	12	10	9	7	5	3
9	25	41	36	27	21	17	13	10	5
22	60	108	75	47	32	24	18	13	6
35	106	277	122	64	40	28	21	15	7
29	71	121	86	57	39	29	23	16	8
20	43	62	56	44	35	28	22	16	8
14	27	37	37	34	29	25	21	15	8
10	18	24	26	25	24	22	18	13	7
6	12	15	17	17	17	16	13	9	5
3	6	7	8	9	9	8	7	5	2