Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 17°C. We apply continuously 168°C heat to the field 8x9
What is the temperature (rounded to whole numbers) in the field 4x7 after 100 iterations according to the Gauss-Seidel iteration

Field in the beginning

17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17

Field after 4 iterations (rounded after 4th iteration)

2	4	5	5	6	6	6	5	4	2
4	7	8	9	10	10	10	9	7	3
5	8	11	12	13	13	13	11	9	4
5	9	12	13	14	15	14	13	10	5
6	10	13	14	15	16	15	14	10	5
6	10	13	15	16	16	16	14	11	6
6	10	13	14	15	16	15	16	17	11
5	9	11	13	14	14	18	27	36	22
4	7	9	10	10	13	25	51	88	44
2	3	4	5	6	11	27	75	225	67

Temperature in field 4x7 after 100 iterations:

17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17

2	4	5	5	6	6	6	5	4	2
4	7	8	9	10	10	10	9	7	3
5	8	11	12	13	13	13	11	9	4
5	9	12	13	14	15	14	13	10	5
6	10	13	14	15	16	15	14	10	5
6	10	13	15	16	16	16	14	11	6
6	10	13	14	15	16	15	16	17	11
5	9	11	13	14	14	18	27	36	22
4	7	9	10	10	13	25	51	88	44
2	3	4	5	6	11	27	75	225	67

17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17

2	4	5	5	6	6	6	5	4	2
4	7	8	9	10	10	10	9	7	3
5	8	11	12	13	13	13	11	9	4
5	9	12	13	14	15	14	13	10	5
6	10	13	14	15	16	15	14	10	5
6	10	13	15	16	16	16	14	11	6
6	10	13	14	15	16	15	16	17	11
5	9	11	13	14	14	18	27	36	22
4	7	9	10	10	13	25	51	88	44
2	3	4	5	6	11	27	75	225	67

17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17
17	17	17	17	17	17	17	17	17	17

2	4	5	5	6	6	6	5	4	2
4	7	8	9	10	10	10	9	7	3
5	8	11	12	13	13	13	11	9	4
5	9	12	13	14	15	14	13	10	5
6	10	13	14	15	16	15	14	10	5
6	10	13	15	16	16	16	14	11	6
6	10	13	14	15	16	15	16	17	11
5	9	11	13	14	14	18	27	36	22
4	7	9	10	10	13	25	51	88	44
2	3	4	5	6	11	27	75	225	67