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 165°C heat to the field 4x9
What is the temperature (rounded to whole numbers) in the field 7x3 after 72 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	11	8	4
9	15	18	20	22	22	22	19	15	8
11	18	23	26	27	28	28	25	19	10
12	20	26	29	31	32	31	28	21	11
12	22	27	31	33	34	33	30	23	12
13	22	28	32	34	35	35	31	23	12
12	22	28	34	40	40	37	32	23	12
11	19	29	43	57	52	42	32	22	11
8	17	33	63	104	71	45	30	18	9
5	13	31	81	232	85	38	20	11	5

Temperature in field 7x3 after 72 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	11	8	4
9	15	18	20	22	22	22	19	15	8
11	18	23	26	27	28	28	25	19	10
12	20	26	29	31	32	31	28	21	11
12	22	27	31	33	34	33	30	23	12
13	22	28	32	34	35	35	31	23	12
12	22	28	34	40	40	37	32	23	12
11	19	29	43	57	52	42	32	22	11
8	17	33	63	104	71	45	30	18	9
5	13	31	81	232	85	38	20	11	5

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	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	11	8	4
9	15	18	20	22	22	22	19	15	8
11	18	23	26	27	28	28	25	19	10
12	20	26	29	31	32	31	28	21	11
12	22	27	31	33	34	33	30	23	12
13	22	28	32	34	35	35	31	23	12
12	22	28	34	40	40	37	32	23	12
11	19	29	43	57	52	42	32	22	11
8	17	33	63	104	71	45	30	18	9
5	13	31	81	232	85	38	20	11	5

37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	37	37	37	37
37	37	37	37	37	37	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	11	8	4
9	15	18	20	22	22	22	19	15	8
11	18	23	26	27	28	28	25	19	10
12	20	26	29	31	32	31	28	21	11
12	22	27	31	33	34	33	30	23	12
13	22	28	32	34	35	35	31	23	12
12	22	28	34	40	40	37	32	23	12
11	19	29	43	57	52	42	32	22	11
8	17	33	63	104	71	45	30	18	9
5	13	31	81	232	85	38	20	11	5