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 121°C heat to the field 6x0
What is the temperature (rounded to whole numbers) in the field 2x7 after 30 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	12	24	60	171	62	25	10
6	11	14	19	30	51	80	52	29	13
8	13	17	22	29	39	48	40	26	13
9	15	19	23	27	32	35	32	23	12
9	16	20	23	26	29	30	27	20	11
9	16	21	23	26	27	27	25	19	10
9	16	20	23	25	26	26	23	17	9
8	14	18	20	22	23	22	20	15	8
6	11	14	15	17	17	17	14	10	5
3	6	7	8	9	9	9	7	5	3

Temperature in field 2x7 after 30 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	12	24	60	171	62	25	10
6	11	14	19	30	51	80	52	29	13
8	13	17	22	29	39	48	40	26	13
9	15	19	23	27	32	35	32	23	12
9	16	20	23	26	29	30	27	20	11
9	16	21	23	26	27	27	25	19	10
9	16	20	23	25	26	26	23	17	9
8	14	18	20	22	23	22	20	15	8
6	11	14	15	17	17	17	14	10	5
3	6	7	8	9	9	9	7	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	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	12	24	60	171	62	25	10
6	11	14	19	30	51	80	52	29	13
8	13	17	22	29	39	48	40	26	13
9	15	19	23	27	32	35	32	23	12
9	16	20	23	26	29	30	27	20	11
9	16	21	23	26	27	27	25	19	10
9	16	20	23	25	26	26	23	17	9
8	14	18	20	22	23	22	20	15	8
6	11	14	15	17	17	17	14	10	5
3	6	7	8	9	9	9	7	5	3

27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	27	27	27	27
27	27	27	27	27	27	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	12	24	60	171	62	25	10
6	11	14	19	30	51	80	52	29	13
8	13	17	22	29	39	48	40	26	13
9	15	19	23	27	32	35	32	23	12
9	16	20	23	26	29	30	27	20	11
9	16	21	23	26	27	27	25	19	10
9	16	20	23	25	26	26	23	17	9
8	14	18	20	22	23	22	20	15	8
6	11	14	15	17	17	17	14	10	5
3	6	7	8	9	9	9	7	5	3