Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 5°C. We apply continuously 166°C heat to the field 2x4
What is the temperature (rounded to whole numbers) in the field 9x9 after 118 iterations according to the Gauss-Seidel iteration

Field in the beginning

5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555

Field after 4 iterations (rounded after 4th iteration)

1122222211
1599754321
518332717117532
17519762341811742
2996263108492413852
236110771412313852
14324840271811752
716232217129642
4811111086431
2355543211

Temperature in field 9x9 after 118 iterations: