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 198°C heat to the field 8x4
What is the temperature (rounded to whole numbers) in the field 8x7 after 98 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	5	3
4	7	9	10	10	11	10	12	15	10
5	9	11	13	13	14	18	31	44	28
6	10	13	14	15	19	34	71	119	63
6	10	13	15	17	24	52	125	316	111
6	11	14	15	17	24	44	84	130	69
6	10	13	15	17	21	33	50	60	37
5	9	12	14	15	18	23	29	31	19
4	7	9	10	11	13	15	17	16	10
2	4	5	5	6	6	7	8	7	4

Temperature in field 8x7 after 98 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	5	3
4	7	9	10	10	11	10	12	15	10
5	9	11	13	13	14	18	31	44	28
6	10	13	14	15	19	34	71	119	63
6	10	13	15	17	24	52	125	316	111
6	11	14	15	17	24	44	84	130	69
6	10	13	15	17	21	33	50	60	37
5	9	12	14	15	18	23	29	31	19
4	7	9	10	11	13	15	17	16	10
2	4	5	5	6	6	7	8	7	4

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	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	5	3
4	7	9	10	10	11	10	12	15	10
5	9	11	13	13	14	18	31	44	28
6	10	13	14	15	19	34	71	119	63
6	10	13	15	17	24	52	125	316	111
6	11	14	15	17	24	44	84	130	69
6	10	13	15	17	21	33	50	60	37
5	9	12	14	15	18	23	29	31	19
4	7	9	10	11	13	15	17	16	10
2	4	5	5	6	6	7	8	7	4

18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	18	18	18	18
18	18	18	18	18	18	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	5	3
4	7	9	10	10	11	10	12	15	10
5	9	11	13	13	14	18	31	44	28
6	10	13	14	15	19	34	71	119	63
6	10	13	15	17	24	52	125	316	111
6	11	14	15	17	24	44	84	130	69
6	10	13	15	17	21	33	50	60	37
5	9	12	14	15	18	23	29	31	19
4	7	9	10	11	13	15	17	16	10
2	4	5	5	6	6	7	8	7	4