Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 98°C heat to the field 0x7
What is the temperature (rounded to whole numbers) in the field 8x7 after 50 iterations according to the Gauss-Seidel iteration

Field in the beginning

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

Field after 4 iterations (rounded after 4th iteration)

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	22	23	23	23	20	15	8
12	19	22	24	25	25	24	22	16	9
22	27	28	27	26	26	25	22	17	9
50	44	35	30	28	26	25	22	16	9
139	66	41	31	26	24	23	20	14	7
49	41	30	24	21	19	17	15	10	5
17	18	16	13	11	10	9	7	5	3

Temperature in field 8x7 after 50 iterations:

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	22	23	23	23	20	15	8
12	19	22	24	25	25	24	22	16	9
22	27	28	27	26	26	25	22	17	9
50	44	35	30	28	26	25	22	16	9
139	66	41	31	26	24	23	20	14	7
49	41	30	24	21	19	17	15	10	5
17	18	16	13	11	10	9	7	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	22	23	23	23	20	15	8
12	19	22	24	25	25	24	22	16	9
22	27	28	27	26	26	25	22	17	9
50	44	35	30	28	26	25	22	16	9
139	66	41	31	26	24	23	20	14	7
49	41	30	24	21	19	17	15	10	5
17	18	16	13	11	10	9	7	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	22	23	23	23	20	15	8
12	19	22	24	25	25	24	22	16	9
22	27	28	27	26	26	25	22	17	9
50	44	35	30	28	26	25	22	16	9
139	66	41	31	26	24	23	20	14	7
49	41	30	24	21	19	17	15	10	5
17	18	16	13	11	10	9	7	5	3