Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 107°C heat to the field 4x9
What is the temperature (rounded to whole numbers) in the field 1x1 after 81 iterations according to the Gauss-Seidel iteration

Field in the beginning

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

Field after 4 iterations (rounded after 4th iteration)

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	13	12	9	5
7	11	14	16	17	17	17	15	12	6
7	13	16	18	19	20	19	17	13	7
8	13	17	19	20	21	21	19	14	7
8	14	17	20	21	22	22	19	15	8
8	13	17	21	25	25	23	20	15	7
7	12	18	27	36	33	26	20	14	7
5	11	21	40	67	45	29	19	11	5
3	8	20	52	150	55	24	13	7	3

Temperature in field 1x1 after 81 iterations:

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	13	12	9	5
7	11	14	16	17	17	17	15	12	6
7	13	16	18	19	20	19	17	13	7
8	13	17	19	20	21	21	19	14	7
8	14	17	20	21	22	22	19	15	8
8	13	17	21	25	25	23	20	15	7
7	12	18	27	36	33	26	20	14	7
5	11	21	40	67	45	29	19	11	5
3	8	20	52	150	55	24	13	7	3

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	13	12	9	5
7	11	14	16	17	17	17	15	12	6
7	13	16	18	19	20	19	17	13	7
8	13	17	19	20	21	21	19	14	7
8	14	17	20	21	22	22	19	15	8
8	13	17	21	25	25	23	20	15	7
7	12	18	27	36	33	26	20	14	7
5	11	21	40	67	45	29	19	11	5
3	8	20	52	150	55	24	13	7	3

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	13	12	9	5
7	11	14	16	17	17	17	15	12	6
7	13	16	18	19	20	19	17	13	7
8	13	17	19	20	21	21	19	14	7
8	14	17	20	21	22	22	19	15	8
8	13	17	21	25	25	23	20	15	7
7	12	18	27	36	33	26	20	14	7
5	11	21	40	67	45	29	19	11	5
3	8	20	52	150	55	24	13	7	3