Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 34°C. We apply continuously 123°C heat to the field 4x6
What is the temperature (rounded to whole numbers) in the field 6x7 after 143 iterations according to the Gauss-Seidel iteration

Field in the beginning

34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34

Field after 4 iterations (rounded after 4th iteration)

5	8	10	11	11	12	11	10	8	4
8	14	17	19	20	20	20	18	13	7
10	17	21	24	26	26	26	23	17	9
11	19	24	29	33	34	32	27	20	11
11	20	28	40	52	48	41	33	23	12
12	22	38	65	100	75	54	39	26	13
12	25	47	98	223	108	64	42	27	13
11	22	40	69	104	78	54	38	24	12
8	16	27	41	54	48	37	27	18	9
4	8	14	19	24	23	19	14	9	4

Temperature in field 6x7 after 143 iterations:

34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34

5	8	10	11	11	12	11	10	8	4
8	14	17	19	20	20	20	18	13	7
10	17	21	24	26	26	26	23	17	9
11	19	24	29	33	34	32	27	20	11
11	20	28	40	52	48	41	33	23	12
12	22	38	65	100	75	54	39	26	13
12	25	47	98	223	108	64	42	27	13
11	22	40	69	104	78	54	38	24	12
8	16	27	41	54	48	37	27	18	9
4	8	14	19	24	23	19	14	9	4

34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34

5	8	10	11	11	12	11	10	8	4
8	14	17	19	20	20	20	18	13	7
10	17	21	24	26	26	26	23	17	9
11	19	24	29	33	34	32	27	20	11
11	20	28	40	52	48	41	33	23	12
12	22	38	65	100	75	54	39	26	13
12	25	47	98	223	108	64	42	27	13
11	22	40	69	104	78	54	38	24	12
8	16	27	41	54	48	37	27	18	9
4	8	14	19	24	23	19	14	9	4

34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34
34	34	34	34	34	34	34	34	34	34

5	8	10	11	11	12	11	10	8	4
8	14	17	19	20	20	20	18	13	7
10	17	21	24	26	26	26	23	17	9
11	19	24	29	33	34	32	27	20	11
11	20	28	40	52	48	41	33	23	12
12	22	38	65	100	75	54	39	26	13
12	25	47	98	223	108	64	42	27	13
11	22	40	69	104	78	54	38	24	12
8	16	27	41	54	48	37	27	18	9
4	8	14	19	24	23	19	14	9	4