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 91°C heat to the field 4x3
What is the temperature (rounded to whole numbers) in the field 3x1 after 31 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	11	14	14	12	10	8	4
7	12	18	26	34	31	26	20	14	7
9	17	28	48	74	56	40	28	19	10
10	21	38	76	168	83	51	34	22	11
11	21	36	58	84	65	48	35	24	12
11	21	31	43	53	49	41	33	23	12
11	19	27	34	39	38	35	30	21	11
9	17	22	27	30	30	29	25	18	9
7	12	16	19	21	22	21	18	13	6
4	6	8	10	11	11	11	9	6	3

Temperature in field 3x1 after 31 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	11	14	14	12	10	8	4
7	12	18	26	34	31	26	20	14	7
9	17	28	48	74	56	40	28	19	10
10	21	38	76	168	83	51	34	22	11
11	21	36	58	84	65	48	35	24	12
11	21	31	43	53	49	41	33	23	12
11	19	27	34	39	38	35	30	21	11
9	17	22	27	30	30	29	25	18	9
7	12	16	19	21	22	21	18	13	6
4	6	8	10	11	11	11	9	6	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	11	14	14	12	10	8	4
7	12	18	26	34	31	26	20	14	7
9	17	28	48	74	56	40	28	19	10
10	21	38	76	168	83	51	34	22	11
11	21	36	58	84	65	48	35	24	12
11	21	31	43	53	49	41	33	23	12
11	19	27	34	39	38	35	30	21	11
9	17	22	27	30	30	29	25	18	9
7	12	16	19	21	22	21	18	13	6
4	6	8	10	11	11	11	9	6	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	11	14	14	12	10	8	4
7	12	18	26	34	31	26	20	14	7
9	17	28	48	74	56	40	28	19	10
10	21	38	76	168	83	51	34	22	11
11	21	36	58	84	65	48	35	24	12
11	21	31	43	53	49	41	33	23	12
11	19	27	34	39	38	35	30	21	11
9	17	22	27	30	30	29	25	18	9
7	12	16	19	21	22	21	18	13	6
4	6	8	10	11	11	11	9	6	3