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 95°C heat to the field 1x3
What is the temperature (rounded to whole numbers) in the field 7x5 after 124 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)

4	8	9	8	7	7	6	6	4	2
12	24	22	18	14	13	11	10	7	4
29	61	44	30	21	17	15	13	9	5
53	156	71	40	26	20	17	15	11	6
34	67	51	35	26	21	18	16	11	6
19	34	34	28	24	21	18	16	12	6
12	21	23	22	21	19	18	15	11	6
8	14	17	17	17	17	16	13	10	5
5	9	11	12	12	12	11	10	7	4
2	4	6	6	6	6	6	5	4	2

Temperature in field 7x5 after 124 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

4	8	9	8	7	7	6	6	4	2
12	24	22	18	14	13	11	10	7	4
29	61	44	30	21	17	15	13	9	5
53	156	71	40	26	20	17	15	11	6
34	67	51	35	26	21	18	16	11	6
19	34	34	28	24	21	18	16	12	6
12	21	23	22	21	19	18	15	11	6
8	14	17	17	17	17	16	13	10	5
5	9	11	12	12	12	11	10	7	4
2	4	6	6	6	6	6	5	4	2

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

4	8	9	8	7	7	6	6	4	2
12	24	22	18	14	13	11	10	7	4
29	61	44	30	21	17	15	13	9	5
53	156	71	40	26	20	17	15	11	6
34	67	51	35	26	21	18	16	11	6
19	34	34	28	24	21	18	16	12	6
12	21	23	22	21	19	18	15	11	6
8	14	17	17	17	17	16	13	10	5
5	9	11	12	12	12	11	10	7	4
2	4	6	6	6	6	6	5	4	2

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

4	8	9	8	7	7	6	6	4	2
12	24	22	18	14	13	11	10	7	4
29	61	44	30	21	17	15	13	9	5
53	156	71	40	26	20	17	15	11	6
34	67	51	35	26	21	18	16	11	6
19	34	34	28	24	21	18	16	12	6
12	21	23	22	21	19	18	15	11	6
8	14	17	17	17	17	16	13	10	5
5	9	11	12	12	12	11	10	7	4
2	4	6	6	6	6	6	5	4	2