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 88°C heat to the field 7x0
What is the temperature (rounded to whole numbers) in the field 7x6 after 86 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	8	17	43	122	42	14
4	6	8	9	12	20	35	55	34	15
5	8	10	12	14	18	26	31	23	12
5	9	11	13	15	17	20	21	17	9
5	9	12	14	15	16	17	17	13	7
5	9	12	14	15	16	16	15	12	6
5	9	12	13	14	15	15	14	10	6
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

Temperature in field 7x6 after 86 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	8	17	43	122	42	14
4	6	8	9	12	20	35	55	34	15
5	8	10	12	14	18	26	31	23	12
5	9	11	13	15	17	20	21	17	9
5	9	12	14	15	16	17	17	13	7
5	9	12	14	15	16	16	15	12	6
5	9	12	13	14	15	15	14	10	6
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	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	8	17	43	122	42	14
4	6	8	9	12	20	35	55	34	15
5	8	10	12	14	18	26	31	23	12
5	9	11	13	15	17	20	21	17	9
5	9	12	14	15	16	17	17	13	7
5	9	12	14	15	16	16	15	12	6
5	9	12	13	14	15	15	14	10	6
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	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	8	17	43	122	42	14
4	6	8	9	12	20	35	55	34	15
5	8	10	12	14	18	26	31	23	12
5	9	11	13	15	17	20	21	17	9
5	9	12	14	15	16	17	17	13	7
5	9	12	14	15	16	16	15	12	6
5	9	12	13	14	15	15	14	10	6
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2