Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 13°C. We apply continuously 74°C heat to the field 2x9
What is the temperature (rounded to whole numbers) in the field 2x3 after 149 iterations according to the Gauss-Seidel iteration

Field in the beginning

13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13

Field after 4 iterations (rounded after 4th iteration)

2	3	4	4	4	4	4	4	3	2
3	5	6	7	8	8	8	7	5	3
4	6	8	9	10	10	10	9	7	3
4	7	9	10	11	11	11	10	7	4
4	8	10	11	12	12	12	10	8	4
4	8	10	12	12	12	12	11	8	4
4	9	13	14	13	13	12	11	8	4
6	14	21	19	16	13	12	10	7	4
9	24	43	29	18	13	10	8	5	3
10	34	102	37	16	9	6	4	3	1

Temperature in field 2x3 after 149 iterations:

13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13

2	3	4	4	4	4	4	4	3	2
3	5	6	7	8	8	8	7	5	3
4	6	8	9	10	10	10	9	7	3
4	7	9	10	11	11	11	10	7	4
4	8	10	11	12	12	12	10	8	4
4	8	10	12	12	12	12	11	8	4
4	9	13	14	13	13	12	11	8	4
6	14	21	19	16	13	12	10	7	4
9	24	43	29	18	13	10	8	5	3
10	34	102	37	16	9	6	4	3	1

13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13

2	3	4	4	4	4	4	4	3	2
3	5	6	7	8	8	8	7	5	3
4	6	8	9	10	10	10	9	7	3
4	7	9	10	11	11	11	10	7	4
4	8	10	11	12	12	12	10	8	4
4	8	10	12	12	12	12	11	8	4
4	9	13	14	13	13	12	11	8	4
6	14	21	19	16	13	12	10	7	4
9	24	43	29	18	13	10	8	5	3
10	34	102	37	16	9	6	4	3	1

13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13
13	13	13	13	13	13	13	13	13	13

2	3	4	4	4	4	4	4	3	2
3	5	6	7	8	8	8	7	5	3
4	6	8	9	10	10	10	9	7	3
4	7	9	10	11	11	11	10	7	4
4	8	10	11	12	12	12	10	8	4
4	8	10	12	12	12	12	11	8	4
4	9	13	14	13	13	12	11	8	4
6	14	21	19	16	13	12	10	7	4
9	24	43	29	18	13	10	8	5	3
10	34	102	37	16	9	6	4	3	1