Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 29°C. We apply continuously 197°C heat to the field 4x8
What is the temperature (rounded to whole numbers) in the field 0x1 after 72 iterations according to the Gauss-Seidel iteration

Field in the beginning

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

Field after 4 iterations (rounded after 4th iteration)

4	7	8	9	10	10	10	9	7	3
7	12	14	16	17	17	17	15	11	6
8	14	18	20	22	22	22	19	15	8
9	16	20	23	24	25	24	22	17	9
10	17	22	24	27	27	27	24	18	9
10	17	22	28	34	35	32	27	19	10
10	17	26	43	61	54	42	32	21	11
9	18	38	79	134	92	58	37	22	11
7	19	49	125	321	136	67	36	20	9
4	12	30	66	114	72	40	22	12	5

Temperature in field 0x1 after 72 iterations:

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	14	16	17	17	17	15	11	6
8	14	18	20	22	22	22	19	15	8
9	16	20	23	24	25	24	22	17	9
10	17	22	24	27	27	27	24	18	9
10	17	22	28	34	35	32	27	19	10
10	17	26	43	61	54	42	32	21	11
9	18	38	79	134	92	58	37	22	11
7	19	49	125	321	136	67	36	20	9
4	12	30	66	114	72	40	22	12	5

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	14	16	17	17	17	15	11	6
8	14	18	20	22	22	22	19	15	8
9	16	20	23	24	25	24	22	17	9
10	17	22	24	27	27	27	24	18	9
10	17	22	28	34	35	32	27	19	10
10	17	26	43	61	54	42	32	21	11
9	18	38	79	134	92	58	37	22	11
7	19	49	125	321	136	67	36	20	9
4	12	30	66	114	72	40	22	12	5

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	14	16	17	17	17	15	11	6
8	14	18	20	22	22	22	19	15	8
9	16	20	23	24	25	24	22	17	9
10	17	22	24	27	27	27	24	18	9
10	17	22	28	34	35	32	27	19	10
10	17	26	43	61	54	42	32	21	11
9	18	38	79	134	92	58	37	22	11
7	19	49	125	321	136	67	36	20	9
4	12	30	66	114	72	40	22	12	5