Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 22°C. We apply continuously 150°C heat to the field 4x2
What is the temperature (rounded to whole numbers) in the field 1x1 after 79 iterations according to the Gauss-Seidel iteration

Field in the beginning

22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22

Field after 4 iterations (rounded after 4th iteration)

3	5	10	21	32	26	18	12	7	4
5	11	25	56	97	65	39	24	14	7
7	17	41	100	251	110	57	32	19	9
8	18	37	70	112	79	51	33	20	10
8	17	29	46	60	53	41	29	19	10
8	15	23	32	38	37	32	26	18	9
7	14	19	24	28	28	26	22	16	8
7	12	16	19	21	22	21	18	13	7
5	9	12	14	15	15	15	13	9	5
3	5	6	7	8	8	7	6	5	2

Temperature in field 1x1 after 79 iterations:

22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22

3	5	10	21	32	26	18	12	7	4
5	11	25	56	97	65	39	24	14	7
7	17	41	100	251	110	57	32	19	9
8	18	37	70	112	79	51	33	20	10
8	17	29	46	60	53	41	29	19	10
8	15	23	32	38	37	32	26	18	9
7	14	19	24	28	28	26	22	16	8
7	12	16	19	21	22	21	18	13	7
5	9	12	14	15	15	15	13	9	5
3	5	6	7	8	8	7	6	5	2

22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22

3	5	10	21	32	26	18	12	7	4
5	11	25	56	97	65	39	24	14	7
7	17	41	100	251	110	57	32	19	9
8	18	37	70	112	79	51	33	20	10
8	17	29	46	60	53	41	29	19	10
8	15	23	32	38	37	32	26	18	9
7	14	19	24	28	28	26	22	16	8
7	12	16	19	21	22	21	18	13	7
5	9	12	14	15	15	15	13	9	5
3	5	6	7	8	8	7	6	5	2

22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22
22	22	22	22	22	22	22	22	22	22

3	5	10	21	32	26	18	12	7	4
5	11	25	56	97	65	39	24	14	7
7	17	41	100	251	110	57	32	19	9
8	18	37	70	112	79	51	33	20	10
8	17	29	46	60	53	41	29	19	10
8	15	23	32	38	37	32	26	18	9
7	14	19	24	28	28	26	22	16	8
7	12	16	19	21	22	21	18	13	7
5	9	12	14	15	15	15	13	9	5
3	5	6	7	8	8	7	6	5	2