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 99°C heat to the field 5x8
What is the temperature (rounded to whole numbers) in the field 0x6 after 100 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	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	18	23	26	28	29	28	25	19	10
11	18	24	27	30	33	32	28	21	11
10	18	23	28	37	46	42	33	23	11
9	16	22	33	54	81	60	40	24	12
7	13	20	35	73	172	78	41	22	10
4	7	11	21	39	63	41	24	13	6

Temperature in field 0x6 after 100 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	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	18	23	26	28	29	28	25	19	10
11	18	24	27	30	33	32	28	21	11
10	18	23	28	37	46	42	33	23	11
9	16	22	33	54	81	60	40	24	12
7	13	20	35	73	172	78	41	22	10
4	7	11	21	39	63	41	24	13	6

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	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	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	18	23	26	28	29	28	25	19	10
11	18	24	27	30	33	32	28	21	11
10	18	23	28	37	46	42	33	23	11
9	16	22	33	54	81	60	40	24	12
7	13	20	35	73	172	78	41	22	10
4	7	11	21	39	63	41	24	13	6

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	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	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	18	23	26	28	29	28	25	19	10
11	18	24	27	30	33	32	28	21	11
10	18	23	28	37	46	42	33	23	11
9	16	22	33	54	81	60	40	24	12
7	13	20	35	73	172	78	41	22	10
4	7	11	21	39	63	41	24	13	6