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 140°C heat to the field 0x7
What is the temperature (rounded to whole numbers) in the field 0x0 after 70 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
6	10	12	13	14	14	14	12	9	5
10	14	15	15	15	15	15	13	10	5
23	26	22	19	17	16	15	13	10	5
64	50	34	24	19	17	15	13	10	5
192	82	43	27	19	16	14	12	9	4
65	50	32	21	16	13	11	9	6	3
21	22	16	12	9	7	6	5	3	2

Temperature in field 0x0 after 70 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
6	10	12	13	14	14	14	12	9	5
10	14	15	15	15	15	15	13	10	5
23	26	22	19	17	16	15	13	10	5
64	50	34	24	19	17	15	13	10	5
192	82	43	27	19	16	14	12	9	4
65	50	32	21	16	13	11	9	6	3
21	22	16	12	9	7	6	5	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	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
6	10	12	13	14	14	14	12	9	5
10	14	15	15	15	15	15	13	10	5
23	26	22	19	17	16	15	13	10	5
64	50	34	24	19	17	15	13	10	5
192	82	43	27	19	16	14	12	9	4
65	50	32	21	16	13	11	9	6	3
21	22	16	12	9	7	6	5	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	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
6	10	12	13	14	14	14	12	9	5
10	14	15	15	15	15	15	13	10	5
23	26	22	19	17	16	15	13	10	5
64	50	34	24	19	17	15	13	10	5
192	82	43	27	19	16	14	12	9	4
65	50	32	21	16	13	11	9	6	3
21	22	16	12	9	7	6	5	3	2