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 159°C heat to the field 3x6
What is the temperature (rounded to whole numbers) in the field 9x3 after 68 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	25	26	26	26	23	17	9
11	19	26	33	34	33	31	27	20	10
11	24	40	57	53	44	37	31	22	11
14	35	72	119	87	61	45	34	24	12
18	48	115	277	130	74	50	36	24	12
16	40	79	125	91	63	45	33	22	11
11	26	46	62	55	43	33	24	16	8
6	13	21	27	26	21	17	13	8	4

Temperature in field 9x3 after 68 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	25	26	26	26	23	17	9
11	19	26	33	34	33	31	27	20	10
11	24	40	57	53	44	37	31	22	11
14	35	72	119	87	61	45	34	24	12
18	48	115	277	130	74	50	36	24	12
16	40	79	125	91	63	45	33	22	11
11	26	46	62	55	43	33	24	16	8
6	13	21	27	26	21	17	13	8	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	25	26	26	26	23	17	9
11	19	26	33	34	33	31	27	20	10
11	24	40	57	53	44	37	31	22	11
14	35	72	119	87	61	45	34	24	12
18	48	115	277	130	74	50	36	24	12
16	40	79	125	91	63	45	33	22	11
11	26	46	62	55	43	33	24	16	8
6	13	21	27	26	21	17	13	8	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	25	26	26	26	23	17	9
11	19	26	33	34	33	31	27	20	10
11	24	40	57	53	44	37	31	22	11
14	35	72	119	87	61	45	34	24	12
18	48	115	277	130	74	50	36	24	12
16	40	79	125	91	63	45	33	22	11
11	26	46	62	55	43	33	24	16	8
6	13	21	27	26	21	17	13	8	4