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 145°C heat to the field 7x5
What is the temperature (rounded to whole numbers) in the field 1x6 after 134 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)

3	5	6	7	7	7	7	6	5	2
5	8	10	12	12	12	12	12	9	5
6	10	13	15	16	16	18	20	16	9
7	12	15	17	18	21	32	42	32	17
7	12	16	18	21	33	61	99	63	29
7	12	16	19	25	46	101	244	102	40
7	12	16	18	24	40	70	107	70	33
6	11	14	16	21	29	43	54	41	21
5	8	11	12	15	19	25	28	23	12
2	4	6	6	8	9	12	12	10	6

Temperature in field 1x6 after 134 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

3	5	6	7	7	7	7	6	5	2
5	8	10	12	12	12	12	12	9	5
6	10	13	15	16	16	18	20	16	9
7	12	15	17	18	21	32	42	32	17
7	12	16	18	21	33	61	99	63	29
7	12	16	19	25	46	101	244	102	40
7	12	16	18	24	40	70	107	70	33
6	11	14	16	21	29	43	54	41	21
5	8	11	12	15	19	25	28	23	12
2	4	6	6	8	9	12	12	10	6

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	7	7	7	6	5	2
5	8	10	12	12	12	12	12	9	5
6	10	13	15	16	16	18	20	16	9
7	12	15	17	18	21	32	42	32	17
7	12	16	18	21	33	61	99	63	29
7	12	16	19	25	46	101	244	102	40
7	12	16	18	24	40	70	107	70	33
6	11	14	16	21	29	43	54	41	21
5	8	11	12	15	19	25	28	23	12
2	4	6	6	8	9	12	12	10	6

21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21
21	21	21	21	21	21	21	21	21	21

3	5	6	7	7	7	7	6	5	2
5	8	10	12	12	12	12	12	9	5
6	10	13	15	16	16	18	20	16	9
7	12	15	17	18	21	32	42	32	17
7	12	16	18	21	33	61	99	63	29
7	12	16	19	25	46	101	244	102	40
7	12	16	18	24	40	70	107	70	33
6	11	14	16	21	29	43	54	41	21
5	8	11	12	15	19	25	28	23	12
2	4	6	6	8	9	12	12	10	6