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 166°C heat to the field 6x4
What is the temperature (rounded to whole numbers) in the field 4x6 after 149 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	7	7	5	3
4	8	9	11	11	14	18	16	12	6
5	9	12	13	18	30	44	36	23	11
6	11	13	18	32	65	109	73	41	18
6	11	15	23	47	111	277	119	56	23
6	11	15	23	41	76	121	82	47	22
6	11	15	20	31	48	62	51	34	17
6	10	13	17	22	30	35	32	23	12
4	7	10	12	15	18	20	18	14	7
2	4	5	6	7	9	9	9	6	3

Temperature in field 4x6 after 149 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	7	7	5	3
4	8	9	11	11	14	18	16	12	6
5	9	12	13	18	30	44	36	23	11
6	11	13	18	32	65	109	73	41	18
6	11	15	23	47	111	277	119	56	23
6	11	15	23	41	76	121	82	47	22
6	11	15	20	31	48	62	51	34	17
6	10	13	17	22	30	35	32	23	12
4	7	10	12	15	18	20	18	14	7
2	4	5	6	7	9	9	9	6	3

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	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	7	7	5	3
4	8	9	11	11	14	18	16	12	6
5	9	12	13	18	30	44	36	23	11
6	11	13	18	32	65	109	73	41	18
6	11	15	23	47	111	277	119	56	23
6	11	15	23	41	76	121	82	47	22
6	11	15	20	31	48	62	51	34	17
6	10	13	17	22	30	35	32	23	12
4	7	10	12	15	18	20	18	14	7
2	4	5	6	7	9	9	9	6	3

19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	19	19	19	19
19	19	19	19	19	19	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	7	7	5	3
4	8	9	11	11	14	18	16	12	6
5	9	12	13	18	30	44	36	23	11
6	11	13	18	32	65	109	73	41	18
6	11	15	23	47	111	277	119	56	23
6	11	15	23	41	76	121	82	47	22
6	11	15	20	31	48	62	51	34	17
6	10	13	17	22	30	35	32	23	12
4	7	10	12	15	18	20	18	14	7
2	4	5	6	7	9	9	9	6	3