Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 38°C. We apply continuously 87°C heat to the field 5x1
What is the temperature (rounded to whole numbers) in the field 3x6 after 77 iterations according to the Gauss-Seidel iteration

Field in the beginning

38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38

Field after 4 iterations (rounded after 4th iteration)

5	9	12	20	35	56	38	24	14	6
9	15	22	36	70	156	74	42	24	11
11	19	27	39	58	82	62	44	28	14
12	21	29	37	47	56	51	40	28	14
13	22	29	35	41	45	43	37	27	14
13	23	29	34	38	40	39	35	26	14
13	22	29	33	36	37	36	33	24	13
11	20	26	29	31	32	32	28	21	11
9	15	19	22	23	24	23	20	15	7
4	8	10	11	12	13	12	10	7	4

Temperature in field 3x6 after 77 iterations:

38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38

5	9	12	20	35	56	38	24	14	6
9	15	22	36	70	156	74	42	24	11
11	19	27	39	58	82	62	44	28	14
12	21	29	37	47	56	51	40	28	14
13	22	29	35	41	45	43	37	27	14
13	23	29	34	38	40	39	35	26	14
13	22	29	33	36	37	36	33	24	13
11	20	26	29	31	32	32	28	21	11
9	15	19	22	23	24	23	20	15	7
4	8	10	11	12	13	12	10	7	4

38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38

5	9	12	20	35	56	38	24	14	6
9	15	22	36	70	156	74	42	24	11
11	19	27	39	58	82	62	44	28	14
12	21	29	37	47	56	51	40	28	14
13	22	29	35	41	45	43	37	27	14
13	23	29	34	38	40	39	35	26	14
13	22	29	33	36	37	36	33	24	13
11	20	26	29	31	32	32	28	21	11
9	15	19	22	23	24	23	20	15	7
4	8	10	11	12	13	12	10	7	4

38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38
38	38	38	38	38	38	38	38	38	38

5	9	12	20	35	56	38	24	14	6
9	15	22	36	70	156	74	42	24	11
11	19	27	39	58	82	62	44	28	14
12	21	29	37	47	56	51	40	28	14
13	22	29	35	41	45	43	37	27	14
13	23	29	34	38	40	39	35	26	14
13	22	29	33	36	37	36	33	24	13
11	20	26	29	31	32	32	28	21	11
9	15	19	22	23	24	23	20	15	7
4	8	10	11	12	13	12	10	7	4