Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 18°C. We apply continuously 91°C heat to the field 2x5
What is the temperature (rounded to whole numbers) in the field 9x5 after 94 iterations according to the Gauss-Seidel iteration

Field in the beginning

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

Field after 4 iterations (rounded after 4th iteration)

3	4	5	6	6	6	6	5	4	2
4	7	9	10	11	11	11	9	7	4
5	10	15	16	16	15	14	12	9	5
8	19	29	27	23	19	17	14	11	6
14	37	65	47	32	24	20	16	12	6
21	62	156	72	41	28	21	17	12	6
18	42	70	52	36	26	21	17	12	6
12	25	36	33	27	22	18	15	10	5
7	15	20	20	18	16	13	11	7	4
3	7	9	9	9	8	7	6	4	2

Temperature in field 9x5 after 94 iterations:

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	11	11	11	9	7	4
5	10	15	16	16	15	14	12	9	5
8	19	29	27	23	19	17	14	11	6
14	37	65	47	32	24	20	16	12	6
21	62	156	72	41	28	21	17	12	6
18	42	70	52	36	26	21	17	12	6
12	25	36	33	27	22	18	15	10	5
7	15	20	20	18	16	13	11	7	4
3	7	9	9	9	8	7	6	4	2

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	11	11	11	9	7	4
5	10	15	16	16	15	14	12	9	5
8	19	29	27	23	19	17	14	11	6
14	37	65	47	32	24	20	16	12	6
21	62	156	72	41	28	21	17	12	6
18	42	70	52	36	26	21	17	12	6
12	25	36	33	27	22	18	15	10	5
7	15	20	20	18	16	13	11	7	4
3	7	9	9	9	8	7	6	4	2

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	11	11	11	9	7	4
5	10	15	16	16	15	14	12	9	5
8	19	29	27	23	19	17	14	11	6
14	37	65	47	32	24	20	16	12	6
21	62	156	72	41	28	21	17	12	6
18	42	70	52	36	26	21	17	12	6
12	25	36	33	27	22	18	15	10	5
7	15	20	20	18	16	13	11	7	4
3	7	9	9	9	8	7	6	4	2