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 100°C heat to the field 0x7
What is the temperature (rounded to whole numbers) in the field 7x1 after 43 iterations according to the Gauss-Seidel iteration

Field in the beginning

16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616

Field after 4 iterations (rounded after 4th iteration)

2455555542
4689999863
5810111212121184
5912131414131295
813141515151413105
1821191816161513105
4838272118161513105
1386134221815141294
47372518141211963
16161310866532

Temperature in field 7x1 after 43 iterations: