Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 16°C. We apply continuously 74°C heat to the field 2x7
What is the temperature (rounded to whole numbers) in the field 8x1 after 39 iterations according to the Gauss-Seidel iteration

Field in the beginning

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

Field after 4 iterations (rounded after 4th iteration)

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	12	13	14	14	14	12	9	5
5	10	15	16	16	16	15	13	10	5
7	17	25	24	21	18	16	14	10	5
12	31	54	39	28	21	17	14	10	5
17	50	126	58	33	22	17	13	9	5
13	32	53	38	25	18	13	10	7	3
7	15	21	18	13	10	7	5	4	2

Temperature in field 8x1 after 39 iterations:

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	12	13	14	14	14	12	9	5
5	10	15	16	16	16	15	13	10	5
7	17	25	24	21	18	16	14	10	5
12	31	54	39	28	21	17	14	10	5
17	50	126	58	33	22	17	13	9	5
13	32	53	38	25	18	13	10	7	3
7	15	21	18	13	10	7	5	4	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	12	13	14	14	14	12	9	5
5	10	15	16	16	16	15	13	10	5
7	17	25	24	21	18	16	14	10	5
12	31	54	39	28	21	17	14	10	5
17	50	126	58	33	22	17	13	9	5
13	32	53	38	25	18	13	10	7	3
7	15	21	18	13	10	7	5	4	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	12	13	14	14	14	12	9	5
5	10	15	16	16	16	15	13	10	5
7	17	25	24	21	18	16	14	10	5
12	31	54	39	28	21	17	14	10	5
17	50	126	58	33	22	17	13	9	5
13	32	53	38	25	18	13	10	7	3
7	15	21	18	13	10	7	5	4	2