Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 16°C. We apply continuously 135°C heat to the field 7x9
What is the temperature (rounded to whole numbers) in the field 0x8 after 124 iterations according to the Gauss-Seidel iteration

Field in the beginning

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

Field after 4 iterations (rounded after 4th iteration)

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	11	13	13	14	13	12	9	5
5	9	12	13	14	15	14	13	10	5
5	9	12	14	15	15	15	14	11	6
5	9	12	13	14	15	17	18	15	8
5	8	11	12	13	16	25	34	25	13
4	6	8	9	12	22	44	75	45	19
2	3	4	5	9	22	62	184	62	20

Temperature in field 0x8 after 124 iterations:

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	11	13	13	14	13	12	9	5
5	9	12	13	14	15	14	13	10	5
5	9	12	14	15	15	15	14	11	6
5	9	12	13	14	15	17	18	15	8
5	8	11	12	13	16	25	34	25	13
4	6	8	9	12	22	44	75	45	19
2	3	4	5	9	22	62	184	62	20

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	11	13	13	14	13	12	9	5
5	9	12	13	14	15	14	13	10	5
5	9	12	14	15	15	15	14	11	6
5	9	12	13	14	15	17	18	15	8
5	8	11	12	13	16	25	34	25	13
4	6	8	9	12	22	44	75	45	19
2	3	4	5	9	22	62	184	62	20

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	5	5	4	2
4	6	8	9	9	9	9	8	6	3
5	8	10	11	12	12	12	11	8	4
5	9	11	13	13	14	13	12	9	5
5	9	12	13	14	15	14	13	10	5
5	9	12	14	15	15	15	14	11	6
5	9	12	13	14	15	17	18	15	8
5	8	11	12	13	16	25	34	25	13
4	6	8	9	12	22	44	75	45	19
2	3	4	5	9	22	62	184	62	20