Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 148°C heat to the field 6x5
What is the temperature (rounded to whole numbers) in the field 2x1 after 135 iterations according to the Gauss-Seidel iteration

Field in the beginning

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

Field after 4 iterations (rounded after 4th iteration)

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	14	13	10	5
7	11	14	16	17	20	23	21	15	8
7	13	16	18	23	34	46	38	25	12
8	13	17	22	35	64	104	71	41	19
8	14	18	26	48	105	253	111	54	23
8	13	18	25	41	73	113	78	46	21
7	12	16	21	31	46	59	49	32	16
5	9	12	15	20	27	32	28	20	10
3	5	6	8	10	13	14	13	9	5

Temperature in field 2x1 after 135 iterations:

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	14	13	10	5
7	11	14	16	17	20	23	21	15	8
7	13	16	18	23	34	46	38	25	12
8	13	17	22	35	64	104	71	41	19
8	14	18	26	48	105	253	111	54	23
8	13	18	25	41	73	113	78	46	21
7	12	16	21	31	46	59	49	32	16
5	9	12	15	20	27	32	28	20	10
3	5	6	8	10	13	14	13	9	5

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	14	13	10	5
7	11	14	16	17	20	23	21	15	8
7	13	16	18	23	34	46	38	25	12
8	13	17	22	35	64	104	71	41	19
8	14	18	26	48	105	253	111	54	23
8	13	18	25	41	73	113	78	46	21
7	12	16	21	31	46	59	49	32	16
5	9	12	15	20	27	32	28	20	10
3	5	6	8	10	13	14	13	9	5

23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23
23	23	23	23	23	23	23	23	23	23

3	5	7	7	8	8	8	7	5	3
5	9	11	13	13	14	14	13	10	5
7	11	14	16	17	20	23	21	15	8
7	13	16	18	23	34	46	38	25	12
8	13	17	22	35	64	104	71	41	19
8	14	18	26	48	105	253	111	54	23
8	13	18	25	41	73	113	78	46	21
7	12	16	21	31	46	59	49	32	16
5	9	12	15	20	27	32	28	20	10
3	5	6	8	10	13	14	13	9	5