Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 21°C. We apply continuously 76°C heat to the field 8x0
What is the temperature (rounded to whole numbers) in the field 2x6 after 83 iterations according to the Gauss-Seidel iteration

Field in the beginning

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

Field after 4 iterations (rounded after 4th iteration)

3	5	6	7	7	9	17	38	105	32
5	8	10	12	13	15	21	33	47	24
6	10	13	15	16	18	21	26	27	15
7	12	15	17	18	19	21	21	19	11
7	12	16	18	19	20	20	19	16	9
7	12	16	18	19	20	20	18	14	8
7	12	16	18	19	19	19	17	13	7
6	11	14	16	17	17	17	15	11	6
5	8	11	12	13	13	13	11	8	4
2	4	6	6	7	7	7	6	4	2

Temperature in field 2x6 after 83 iterations:

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	7	9	17	38	105	32
5	8	10	12	13	15	21	33	47	24
6	10	13	15	16	18	21	26	27	15
7	12	15	17	18	19	21	21	19	11
7	12	16	18	19	20	20	19	16	9
7	12	16	18	19	20	20	18	14	8
7	12	16	18	19	19	19	17	13	7
6	11	14	16	17	17	17	15	11	6
5	8	11	12	13	13	13	11	8	4
2	4	6	6	7	7	7	6	4	2

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	7	9	17	38	105	32
5	8	10	12	13	15	21	33	47	24
6	10	13	15	16	18	21	26	27	15
7	12	15	17	18	19	21	21	19	11
7	12	16	18	19	20	20	19	16	9
7	12	16	18	19	20	20	18	14	8
7	12	16	18	19	19	19	17	13	7
6	11	14	16	17	17	17	15	11	6
5	8	11	12	13	13	13	11	8	4
2	4	6	6	7	7	7	6	4	2

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	7	9	17	38	105	32
5	8	10	12	13	15	21	33	47	24
6	10	13	15	16	18	21	26	27	15
7	12	15	17	18	19	21	21	19	11
7	12	16	18	19	20	20	19	16	9
7	12	16	18	19	20	20	18	14	8
7	12	16	18	19	19	19	17	13	7
6	11	14	16	17	17	17	15	11	6
5	8	11	12	13	13	13	11	8	4
2	4	6	6	7	7	7	6	4	2