Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 35°C. We apply continuously 77°C heat to the field 4x4
What is the temperature (rounded to whole numbers) in the field 7x3 after 127 iterations according to the Gauss-Seidel iteration

Field in the beginning

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

Field after 4 iterations (rounded after 4th iteration)

5	8	10	11	12	12	12	11	8	4
8	14	17	21	23	24	22	19	14	7
10	17	24	32	40	37	32	27	19	10
11	21	32	50	73	57	43	33	23	12
12	23	40	73	151	80	52	37	25	13
12	24	37	57	80	64	49	37	26	13
12	22	32	43	52	49	42	34	24	12
11	19	27	33	37	37	34	29	21	10
8	14	19	23	25	26	24	21	15	7
4	7	10	12	13	13	12	10	7	4

Temperature in field 7x3 after 127 iterations:

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	21	23	24	22	19	14	7
10	17	24	32	40	37	32	27	19	10
11	21	32	50	73	57	43	33	23	12
12	23	40	73	151	80	52	37	25	13
12	24	37	57	80	64	49	37	26	13
12	22	32	43	52	49	42	34	24	12
11	19	27	33	37	37	34	29	21	10
8	14	19	23	25	26	24	21	15	7
4	7	10	12	13	13	12	10	7	4

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	21	23	24	22	19	14	7
10	17	24	32	40	37	32	27	19	10
11	21	32	50	73	57	43	33	23	12
12	23	40	73	151	80	52	37	25	13
12	24	37	57	80	64	49	37	26	13
12	22	32	43	52	49	42	34	24	12
11	19	27	33	37	37	34	29	21	10
8	14	19	23	25	26	24	21	15	7
4	7	10	12	13	13	12	10	7	4

35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35
35	35	35	35	35	35	35	35	35	35

5	8	10	11	12	12	12	11	8	4
8	14	17	21	23	24	22	19	14	7
10	17	24	32	40	37	32	27	19	10
11	21	32	50	73	57	43	33	23	12
12	23	40	73	151	80	52	37	25	13
12	24	37	57	80	64	49	37	26	13
12	22	32	43	52	49	42	34	24	12
11	19	27	33	37	37	34	29	21	10
8	14	19	23	25	26	24	21	15	7
4	7	10	12	13	13	12	10	7	4