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 71°C heat to the field 0x6
What is the temperature (rounded to whole numbers) in the field 2x8 after 39 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
9	15	19	21	22	22	22	19	15	8
11	18	22	24	25	25	25	22	17	9
19	25	27	27	27	27	26	23	18	9
40	38	33	30	29	28	27	24	18	10
104	54	38	32	29	28	27	24	18	9
40	38	32	28	27	26	24	21	15	8
18	22	22	21	20	19	18	16	11	6
7	10	11	11	11	10	9	8	6	3

Temperature in field 2x8 after 39 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
9	15	19	21	22	22	22	19	15	8
11	18	22	24	25	25	25	22	17	9
19	25	27	27	27	27	26	23	18	9
40	38	33	30	29	28	27	24	18	10
104	54	38	32	29	28	27	24	18	9
40	38	32	28	27	26	24	21	15	8
18	22	22	21	20	19	18	16	11	6
7	10	11	11	11	10	9	8	6	3

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	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
9	15	19	21	22	22	22	19	15	8
11	18	22	24	25	25	25	22	17	9
19	25	27	27	27	27	26	23	18	9
40	38	33	30	29	28	27	24	18	10
104	54	38	32	29	28	27	24	18	9
40	38	32	28	27	26	24	21	15	8
18	22	22	21	20	19	18	16	11	6
7	10	11	11	11	10	9	8	6	3

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	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
9	15	19	21	22	22	22	19	15	8
11	18	22	24	25	25	25	22	17	9
19	25	27	27	27	27	26	23	18	9
40	38	33	30	29	28	27	24	18	10
104	54	38	32	29	28	27	24	18	9
40	38	32	28	27	26	24	21	15	8
18	22	22	21	20	19	18	16	11	6
7	10	11	11	11	10	9	8	6	3