Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 31°C. We apply continuously 65°C heat to the field 2x7
What is the temperature (rounded to whole numbers) in the field 3x1 after 149 iterations according to the Gauss-Seidel iteration

Field in the beginning

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

Field after 4 iterations (rounded after 4th iteration)

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	19	26	28	29	29	28	25	19	10
12	25	35	36	34	32	30	26	20	10
16	37	60	49	40	34	31	26	19	10
20	53	122	64	42	33	29	24	17	9
15	34	55	43	32	26	22	18	12	6
8	16	23	21	17	14	12	9	6	3

Temperature in field 3x1 after 149 iterations:

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	19	26	28	29	29	28	25	19	10
12	25	35	36	34	32	30	26	20	10
16	37	60	49	40	34	31	26	19	10
20	53	122	64	42	33	29	24	17	9
15	34	55	43	32	26	22	18	12	6
8	16	23	21	17	14	12	9	6	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	19	26	28	29	29	28	25	19	10
12	25	35	36	34	32	30	26	20	10
16	37	60	49	40	34	31	26	19	10
20	53	122	64	42	33	29	24	17	9
15	34	55	43	32	26	22	18	12	6
8	16	23	21	17	14	12	9	6	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	26	27	26	23	18	9
10	19	26	28	29	29	28	25	19	10
12	25	35	36	34	32	30	26	20	10
16	37	60	49	40	34	31	26	19	10
20	53	122	64	42	33	29	24	17	9
15	34	55	43	32	26	22	18	12	6
8	16	23	21	17	14	12	9	6	3