Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 35°C. We apply continuously 98°C heat to the field 2x8
What is the temperature (rounded to whole numbers) in the field 2x1 after 77 iterations according to the Gauss-Seidel iteration

Field in the beginning

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

Field after 4 iterations (rounded after 4th iteration)

5	8	10	11	12	12	12	11	8	4
8	14	17	19	20	21	20	18	14	7
10	17	22	25	26	27	26	23	18	9
11	19	25	28	29	30	29	26	20	10
12	20	26	30	32	32	31	28	21	11
12	22	30	34	34	34	33	29	22	12
14	30	44	43	39	36	34	29	22	11
19	47	78	60	46	37	32	27	19	10
24	67	168	79	46	32	26	20	14	7
14	35	61	41	27	19	14	11	7	4

Temperature in field 2x1 after 77 iterations:

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	19	20	21	20	18	14	7
10	17	22	25	26	27	26	23	18	9
11	19	25	28	29	30	29	26	20	10
12	20	26	30	32	32	31	28	21	11
12	22	30	34	34	34	33	29	22	12
14	30	44	43	39	36	34	29	22	11
19	47	78	60	46	37	32	27	19	10
24	67	168	79	46	32	26	20	14	7
14	35	61	41	27	19	14	11	7	4

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	19	20	21	20	18	14	7
10	17	22	25	26	27	26	23	18	9
11	19	25	28	29	30	29	26	20	10
12	20	26	30	32	32	31	28	21	11
12	22	30	34	34	34	33	29	22	12
14	30	44	43	39	36	34	29	22	11
19	47	78	60	46	37	32	27	19	10
24	67	168	79	46	32	26	20	14	7
14	35	61	41	27	19	14	11	7	4

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	19	20	21	20	18	14	7
10	17	22	25	26	27	26	23	18	9
11	19	25	28	29	30	29	26	20	10
12	20	26	30	32	32	31	28	21	11
12	22	30	34	34	34	33	29	22	12
14	30	44	43	39	36	34	29	22	11
19	47	78	60	46	37	32	27	19	10
24	67	168	79	46	32	26	20	14	7
14	35	61	41	27	19	14	11	7	4