Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 18°C. We apply continuously 176°C heat to the field 6x9
What is the temperature (rounded to whole numbers) in the field 6x0 after 131 iterations according to the Gauss-Seidel iteration

Field in the beginning

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

Field after 4 iterations (rounded after 4th iteration)

3	4	5	6	6	6	6	5	4	2
4	7	9	10	10	11	10	9	7	4
5	9	11	13	13	14	13	12	9	5
6	10	13	14	15	15	15	14	10	5
6	10	13	15	16	16	16	15	11	6
6	11	14	15	16	17	17	16	12	6
6	10	13	15	16	19	23	21	15	8
5	9	12	14	19	31	44	35	22	10
4	7	9	13	26	56	98	61	31	13
2	4	5	11	28	80	241	83	31	11

Temperature in field 6x0 after 131 iterations:

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	10	11	10	9	7	4
5	9	11	13	13	14	13	12	9	5
6	10	13	14	15	15	15	14	10	5
6	10	13	15	16	16	16	15	11	6
6	11	14	15	16	17	17	16	12	6
6	10	13	15	16	19	23	21	15	8
5	9	12	14	19	31	44	35	22	10
4	7	9	13	26	56	98	61	31	13
2	4	5	11	28	80	241	83	31	11

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	10	11	10	9	7	4
5	9	11	13	13	14	13	12	9	5
6	10	13	14	15	15	15	14	10	5
6	10	13	15	16	16	16	15	11	6
6	11	14	15	16	17	17	16	12	6
6	10	13	15	16	19	23	21	15	8
5	9	12	14	19	31	44	35	22	10
4	7	9	13	26	56	98	61	31	13
2	4	5	11	28	80	241	83	31	11

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18

3	4	5	6	6	6	6	5	4	2
4	7	9	10	10	11	10	9	7	4
5	9	11	13	13	14	13	12	9	5
6	10	13	14	15	15	15	14	10	5
6	10	13	15	16	16	16	15	11	6
6	11	14	15	16	17	17	16	12	6
6	10	13	15	16	19	23	21	15	8
5	9	12	14	19	31	44	35	22	10
4	7	9	13	26	56	98	61	31	13
2	4	5	11	28	80	241	83	31	11