Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 31°C. We apply continuously 157°C heat to the field 8x0
What is the temperature (rounded to whole numbers) in the field 8x3 after 99 iterations according to the Gauss-Seidel iteration

Field in the beginning

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

Field after 4 iterations (rounded after 4th iteration)

4	7	9	10	11	15	30	75	214	65
7	12	15	17	19	24	36	61	92	46
9	15	19	22	24	27	34	45	49	29
10	17	22	25	26	29	32	35	32	19
10	18	23	26	28	29	31	30	25	14
11	18	24	27	28	29	30	28	22	12
10	18	23	26	28	29	29	26	20	11
9	16	21	23	25	26	25	23	17	9
7	12	16	18	19	19	19	16	12	6
4	6	8	9	10	10	10	8	6	3

Temperature in field 8x3 after 99 iterations:

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	11	15	30	75	214	65
7	12	15	17	19	24	36	61	92	46
9	15	19	22	24	27	34	45	49	29
10	17	22	25	26	29	32	35	32	19
10	18	23	26	28	29	31	30	25	14
11	18	24	27	28	29	30	28	22	12
10	18	23	26	28	29	29	26	20	11
9	16	21	23	25	26	25	23	17	9
7	12	16	18	19	19	19	16	12	6
4	6	8	9	10	10	10	8	6	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	11	15	30	75	214	65
7	12	15	17	19	24	36	61	92	46
9	15	19	22	24	27	34	45	49	29
10	17	22	25	26	29	32	35	32	19
10	18	23	26	28	29	31	30	25	14
11	18	24	27	28	29	30	28	22	12
10	18	23	26	28	29	29	26	20	11
9	16	21	23	25	26	25	23	17	9
7	12	16	18	19	19	19	16	12	6
4	6	8	9	10	10	10	8	6	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	11	15	30	75	214	65
7	12	15	17	19	24	36	61	92	46
9	15	19	22	24	27	34	45	49	29
10	17	22	25	26	29	32	35	32	19
10	18	23	26	28	29	31	30	25	14
11	18	24	27	28	29	30	28	22	12
10	18	23	26	28	29	29	26	20	11
9	16	21	23	25	26	25	23	17	9
7	12	16	18	19	19	19	16	12	6
4	6	8	9	10	10	10	8	6	3