Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 19°C. We apply continuously 75°C heat to the field 8x7
What is the temperature (rounded to whole numbers) in the field 3x6 after 54 iterations according to the Gauss-Seidel iteration

Field in the beginning

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19

Field after 4 iterations (rounded after 4th iteration)

3	4	5	6	6	6	6	6	4	2
4	8	9	11	11	11	11	10	7	4
5	9	12	13	14	14	14	13	10	5
6	11	13	15	16	16	16	14	11	6
6	11	14	16	17	17	17	16	15	9
6	11	14	16	17	18	19	23	25	15
6	11	14	16	17	19	24	37	53	28
6	10	13	14	16	19	29	56	125	45
4	7	10	11	12	15	22	36	51	27
2	4	5	6	6	8	11	16	20	12

Temperature in field 3x6 after 54 iterations:

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19

3	4	5	6	6	6	6	6	4	2
4	8	9	11	11	11	11	10	7	4
5	9	12	13	14	14	14	13	10	5
6	11	13	15	16	16	16	14	11	6
6	11	14	16	17	17	17	16	15	9
6	11	14	16	17	18	19	23	25	15
6	11	14	16	17	19	24	37	53	28
6	10	13	14	16	19	29	56	125	45
4	7	10	11	12	15	22	36	51	27
2	4	5	6	6	8	11	16	20	12

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19

3	4	5	6	6	6	6	6	4	2
4	8	9	11	11	11	11	10	7	4
5	9	12	13	14	14	14	13	10	5
6	11	13	15	16	16	16	14	11	6
6	11	14	16	17	17	17	16	15	9
6	11	14	16	17	18	19	23	25	15
6	11	14	16	17	19	24	37	53	28
6	10	13	14	16	19	29	56	125	45
4	7	10	11	12	15	22	36	51	27
2	4	5	6	6	8	11	16	20	12

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19

3	4	5	6	6	6	6	6	4	2
4	8	9	11	11	11	11	10	7	4
5	9	12	13	14	14	14	13	10	5
6	11	13	15	16	16	16	14	11	6
6	11	14	16	17	17	17	16	15	9
6	11	14	16	17	18	19	23	25	15
6	11	14	16	17	19	24	37	53	28
6	10	13	14	16	19	29	56	125	45
4	7	10	11	12	15	22	36	51	27
2	4	5	6	6	8	11	16	20	12