Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 32°C. We apply continuously 83°C heat to the field 7x6
What is the temperature (rounded to whole numbers) in the field 1x4 after 76 iterations according to the Gauss-Seidel iteration

Field in the beginning

32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32

Field after 4 iterations (rounded after 4th iteration)

4	7	9	10	11	11	11	10	7	4
7	13	16	18	19	19	19	17	13	7
9	16	20	23	24	24	24	22	17	9
10	18	23	25	27	27	28	28	21	11
11	19	24	27	28	31	37	41	31	16
11	19	24	27	30	38	54	73	49	23
11	19	24	27	32	44	76	156	70	29
10	17	21	25	29	38	55	75	49	23
7	13	16	19	22	27	34	39	29	15
4	7	8	10	11	14	16	17	13	7

Temperature in field 1x4 after 76 iterations:

32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32

4	7	9	10	11	11	11	10	7	4
7	13	16	18	19	19	19	17	13	7
9	16	20	23	24	24	24	22	17	9
10	18	23	25	27	27	28	28	21	11
11	19	24	27	28	31	37	41	31	16
11	19	24	27	30	38	54	73	49	23
11	19	24	27	32	44	76	156	70	29
10	17	21	25	29	38	55	75	49	23
7	13	16	19	22	27	34	39	29	15
4	7	8	10	11	14	16	17	13	7

32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32

4	7	9	10	11	11	11	10	7	4
7	13	16	18	19	19	19	17	13	7
9	16	20	23	24	24	24	22	17	9
10	18	23	25	27	27	28	28	21	11
11	19	24	27	28	31	37	41	31	16
11	19	24	27	30	38	54	73	49	23
11	19	24	27	32	44	76	156	70	29
10	17	21	25	29	38	55	75	49	23
7	13	16	19	22	27	34	39	29	15
4	7	8	10	11	14	16	17	13	7

32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32
32	32	32	32	32	32	32	32	32	32

4	7	9	10	11	11	11	10	7	4
7	13	16	18	19	19	19	17	13	7
9	16	20	23	24	24	24	22	17	9
10	18	23	25	27	27	28	28	21	11
11	19	24	27	28	31	37	41	31	16
11	19	24	27	30	38	54	73	49	23
11	19	24	27	32	44	76	156	70	29
10	17	21	25	29	38	55	75	49	23
7	13	16	19	22	27	34	39	29	15
4	7	8	10	11	14	16	17	13	7