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 180°C heat to the field 7x5
What is the temperature (rounded to whole numbers) in the field 1x4 after 89 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	13	10	5
7	11	14	16	17	17	20	23	18	10
7	13	16	18	19	24	37	50	38	20
8	13	17	19	23	38	73	120	76	35
8	14	17	20	28	54	123	300	125	49
8	13	17	20	27	46	84	131	85	39
7	12	15	18	23	34	51	65	50	26
5	9	12	14	16	22	29	33	27	15
3	5	6	7	8	11	13	14	12	7

Temperature in field 1x4 after 89 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	13	10	5
7	11	14	16	17	17	20	23	18	10
7	13	16	18	19	24	37	50	38	20
8	13	17	19	23	38	73	120	76	35
8	14	17	20	28	54	123	300	125	49
8	13	17	20	27	46	84	131	85	39
7	12	15	18	23	34	51	65	50	26
5	9	12	14	16	22	29	33	27	15
3	5	6	7	8	11	13	14	12	7

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	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	13	10	5
7	11	14	16	17	17	20	23	18	10
7	13	16	18	19	24	37	50	38	20
8	13	17	19	23	38	73	120	76	35
8	14	17	20	28	54	123	300	125	49
8	13	17	20	27	46	84	131	85	39
7	12	15	18	23	34	51	65	50	26
5	9	12	14	16	22	29	33	27	15
3	5	6	7	8	11	13	14	12	7

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	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	13	10	5
7	11	14	16	17	17	20	23	18	10
7	13	16	18	19	24	37	50	38	20
8	13	17	19	23	38	73	120	76	35
8	14	17	20	28	54	123	300	125	49
8	13	17	20	27	46	84	131	85	39
7	12	15	18	23	34	51	65	50	26
5	9	12	14	16	22	29	33	27	15
3	5	6	7	8	11	13	14	12	7