Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 111°C heat to the field 4x5
What is the temperature (rounded to whole numbers) in the field 0x5 after 73 iterations according to the Gauss-Seidel iteration

Field in the beginning

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

Field after 4 iterations (rounded after 4th iteration)

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	17	16	14	11	6
8	13	17	21	25	25	23	20	14	7
9	15	22	32	43	39	32	25	18	9
9	17	31	55	87	64	44	31	21	10
10	20	40	86	198	95	55	36	23	11
10	20	36	62	93	70	49	34	22	11
9	17	27	41	52	46	37	28	19	9
6	12	18	25	30	29	25	20	13	7
3	6	9	12	14	14	12	10	7	3

Temperature in field 0x5 after 73 iterations:

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	17	16	14	11	6
8	13	17	21	25	25	23	20	14	7
9	15	22	32	43	39	32	25	18	9
9	17	31	55	87	64	44	31	21	10
10	20	40	86	198	95	55	36	23	11
10	20	36	62	93	70	49	34	22	11
9	17	27	41	52	46	37	28	19	9
6	12	18	25	30	29	25	20	13	7
3	6	9	12	14	14	12	10	7	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	17	16	14	11	6
8	13	17	21	25	25	23	20	14	7
9	15	22	32	43	39	32	25	18	9
9	17	31	55	87	64	44	31	21	10
10	20	40	86	198	95	55	36	23	11
10	20	36	62	93	70	49	34	22	11
9	17	27	41	52	46	37	28	19	9
6	12	18	25	30	29	25	20	13	7
3	6	9	12	14	14	12	10	7	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	17	16	14	11	6
8	13	17	21	25	25	23	20	14	7
9	15	22	32	43	39	32	25	18	9
9	17	31	55	87	64	44	31	21	10
10	20	40	86	198	95	55	36	23	11
10	20	36	62	93	70	49	34	22	11
9	17	27	41	52	46	37	28	19	9
6	12	18	25	30	29	25	20	13	7
3	6	9	12	14	14	12	10	7	3