Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 37°C. We apply continuously 83°C heat to the field 9x2
What is the temperature (rounded to whole numbers) in the field 2x2 after 86 iterations according to the Gauss-Seidel iteration

Field in the beginning

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37

Field after 4 iterations (rounded after 4th iteration)

5	9	11	12	12	13	12	13	15	14
9	15	18	20	22	22	23	27	36	42
11	18	23	26	27	28	31	39	60	120
12	20	26	29	31	32	34	39	45	48
12	22	27	31	33	34	35	36	34	25
13	22	28	32	34	35	35	34	28	17
12	22	28	31	33	34	34	31	25	14
11	19	25	28	30	31	30	27	20	11
8	15	19	21	23	23	23	20	14	7
4	8	10	11	12	12	12	10	7	4

Temperature in field 2x2 after 86 iterations:

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37

5	9	11	12	12	13	12	13	15	14
9	15	18	20	22	22	23	27	36	42
11	18	23	26	27	28	31	39	60	120
12	20	26	29	31	32	34	39	45	48
12	22	27	31	33	34	35	36	34	25
13	22	28	32	34	35	35	34	28	17
12	22	28	31	33	34	34	31	25	14
11	19	25	28	30	31	30	27	20	11
8	15	19	21	23	23	23	20	14	7
4	8	10	11	12	12	12	10	7	4

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37

5	9	11	12	12	13	12	13	15	14
9	15	18	20	22	22	23	27	36	42
11	18	23	26	27	28	31	39	60	120
12	20	26	29	31	32	34	39	45	48
12	22	27	31	33	34	35	36	34	25
13	22	28	32	34	35	35	34	28	17
12	22	28	31	33	34	34	31	25	14
11	19	25	28	30	31	30	27	20	11
8	15	19	21	23	23	23	20	14	7
4	8	10	11	12	12	12	10	7	4

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37

5	9	11	12	12	13	12	13	15	14
9	15	18	20	22	22	23	27	36	42
11	18	23	26	27	28	31	39	60	120
12	20	26	29	31	32	34	39	45	48
12	22	27	31	33	34	35	36	34	25
13	22	28	32	34	35	35	34	28	17
12	22	28	31	33	34	34	31	25	14
11	19	25	28	30	31	30	27	20	11
8	15	19	21	23	23	23	20	14	7
4	8	10	11	12	12	12	10	7	4