Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 61°C heat to the field 8x8
What is the temperature (rounded to whole numbers) in the field 3x8 after 35 iterations according to the Gauss-Seidel iteration

Field in the beginning

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

Field after 4 iterations (rounded after 4th iteration)

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	21	23	23	23	20	15	8
9	16	20	23	24	25	24	22	17	9
9	16	20	23	25	25	25	23	19	11
9	16	20	23	24	25	26	28	27	16
8	14	18	20	22	23	28	37	47	25
6	11	14	15	17	19	27	47	103	36
3	6	7	8	9	11	16	25	36	18

Temperature in field 3x8 after 35 iterations:

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	21	23	23	23	20	15	8
9	16	20	23	24	25	24	22	17	9
9	16	20	23	25	25	25	23	19	11
9	16	20	23	24	25	26	28	27	16
8	14	18	20	22	23	28	37	47	25
6	11	14	15	17	19	27	47	103	36
3	6	7	8	9	11	16	25	36	18

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	21	23	23	23	20	15	8
9	16	20	23	24	25	24	22	17	9
9	16	20	23	25	25	25	23	19	11
9	16	20	23	24	25	26	28	27	16
8	14	18	20	22	23	28	37	47	25
6	11	14	15	17	19	27	47	103	36
3	6	7	8	9	11	16	25	36	18

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27

4	6	8	9	9	9	9	8	6	3
6	11	13	15	16	16	16	14	11	6
8	13	17	19	20	20	20	18	14	7
9	15	19	21	23	23	23	20	15	8
9	16	20	23	24	25	24	22	17	9
9	16	20	23	25	25	25	23	19	11
9	16	20	23	24	25	26	28	27	16
8	14	18	20	22	23	28	37	47	25
6	11	14	15	17	19	27	47	103	36
3	6	7	8	9	11	16	25	36	18