Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 29°C. We apply continuously 71°C heat to the field 0x5
What is the temperature (rounded to whole numbers) in the field 4x4 after 111 iterations according to the Gauss-Seidel iteration

Field in the beginning

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

Field after 4 iterations (rounded after 4th iteration)

4	7	8	9	10	10	10	9	7	3
7	12	15	16	17	17	17	15	11	6
11	17	20	21	22	22	22	19	15	8
18	24	26	26	26	25	25	22	17	9
40	37	33	30	28	28	26	24	18	9
105	55	38	32	30	29	27	24	18	10
41	39	34	31	29	28	27	24	18	9
20	26	27	27	26	25	24	21	15	8
11	16	19	19	19	19	18	15	11	6
5	8	9	10	10	10	9	8	6	3

Temperature in field 4x4 after 111 iterations:

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	15	16	17	17	17	15	11	6
11	17	20	21	22	22	22	19	15	8
18	24	26	26	26	25	25	22	17	9
40	37	33	30	28	28	26	24	18	9
105	55	38	32	30	29	27	24	18	10
41	39	34	31	29	28	27	24	18	9
20	26	27	27	26	25	24	21	15	8
11	16	19	19	19	19	18	15	11	6
5	8	9	10	10	10	9	8	6	3

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	15	16	17	17	17	15	11	6
11	17	20	21	22	22	22	19	15	8
18	24	26	26	26	25	25	22	17	9
40	37	33	30	28	28	26	24	18	9
105	55	38	32	30	29	27	24	18	10
41	39	34	31	29	28	27	24	18	9
20	26	27	27	26	25	24	21	15	8
11	16	19	19	19	19	18	15	11	6
5	8	9	10	10	10	9	8	6	3

29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29
29	29	29	29	29	29	29	29	29	29

4	7	8	9	10	10	10	9	7	3
7	12	15	16	17	17	17	15	11	6
11	17	20	21	22	22	22	19	15	8
18	24	26	26	26	25	25	22	17	9
40	37	33	30	28	28	26	24	18	9
105	55	38	32	30	29	27	24	18	10
41	39	34	31	29	28	27	24	18	9
20	26	27	27	26	25	24	21	15	8
11	16	19	19	19	19	18	15	11	6
5	8	9	10	10	10	9	8	6	3