Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 31°C. We apply continuously 163°C heat to the field 2x7
What is the temperature (rounded to whole numbers) in the field 2x2 after 123 iterations according to the Gauss-Seidel iteration

Field in the beginning

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

Field after 4 iterations (rounded after 4th iteration)

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	27	27	26	24	18	9
10	21	30	32	32	30	29	25	19	10
14	34	53	50	42	36	32	27	20	10
25	65	115	83	57	42	34	28	20	10
37	107	275	125	69	45	34	26	18	9
27	68	116	82	53	36	27	20	13	7
14	31	46	38	28	20	15	11	7	3

Temperature in field 2x2 after 123 iterations:

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	27	27	26	24	18	9
10	21	30	32	32	30	29	25	19	10
14	34	53	50	42	36	32	27	20	10
25	65	115	83	57	42	34	28	20	10
37	107	275	125	69	45	34	26	18	9
27	68	116	82	53	36	27	20	13	7
14	31	46	38	28	20	15	11	7	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	27	27	26	24	18	9
10	21	30	32	32	30	29	25	19	10
14	34	53	50	42	36	32	27	20	10
25	65	115	83	57	42	34	28	20	10
37	107	275	125	69	45	34	26	18	9
27	68	116	82	53	36	27	20	13	7
14	31	46	38	28	20	15	11	7	3

31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31
31	31	31	31	31	31	31	31	31	31

4	7	9	10	10	11	10	9	7	4
7	12	15	17	18	18	18	16	12	6
9	15	19	22	23	24	23	21	16	8
10	17	22	25	27	27	26	24	18	9
10	21	30	32	32	30	29	25	19	10
14	34	53	50	42	36	32	27	20	10
25	65	115	83	57	42	34	28	20	10
37	107	275	125	69	45	34	26	18	9
27	68	116	82	53	36	27	20	13	7
14	31	46	38	28	20	15	11	7	3