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 199°C heat to the field 4x0
What is the temperature (rounded to whole numbers) in the field 8x0 after 63 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)

4	11	31	91	273	95	39	18	9	4
6	15	34	69	118	75	43	25	15	7
7	15	28	46	62	52	37	26	16	8
7	14	22	32	38	36	31	24	16	8
7	13	19	24	28	28	26	22	16	8
7	13	18	21	23	24	23	20	15	8
7	12	16	19	21	21	21	18	14	7
6	11	14	16	18	18	18	16	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 8x0 after 63 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

4	11	31	91	273	95	39	18	9	4
6	15	34	69	118	75	43	25	15	7
7	15	28	46	62	52	37	26	16	8
7	14	22	32	38	36	31	24	16	8
7	13	19	24	28	28	26	22	16	8
7	13	18	21	23	24	23	20	15	8
7	12	16	19	21	21	21	18	14	7
6	11	14	16	18	18	18	16	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

4	11	31	91	273	95	39	18	9	4
6	15	34	69	118	75	43	25	15	7
7	15	28	46	62	52	37	26	16	8
7	14	22	32	38	36	31	24	16	8
7	13	19	24	28	28	26	22	16	8
7	13	18	21	23	24	23	20	15	8
7	12	16	19	21	21	21	18	14	7
6	11	14	16	18	18	18	16	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

4	11	31	91	273	95	39	18	9	4
6	15	34	69	118	75	43	25	15	7
7	15	28	46	62	52	37	26	16	8
7	14	22	32	38	36	31	24	16	8
7	13	19	24	28	28	26	22	16	8
7	13	18	21	23	24	23	20	15	8
7	12	16	19	21	21	21	18	14	7
6	11	14	16	18	18	18	16	11	6
5	8	11	12	13	13	13	11	8	4
2	4	6	6	7	7	7	6	4	2