Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 178°C heat to the field 9x7
What is the temperature (rounded to whole numbers) in the field 0x1 after 43 iterations according to the Gauss-Seidel iteration

Field in the beginning

23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323

Field after 4 iterations (rounded after 4th iteration)

3577888753
5911131314131295
711141617171715126
713161819201917138
8131719202121191713
8141720212221233030
8131719212124355982
712151719202646100244
591213141520346082
35677811172627

Temperature in field 0x1 after 43 iterations: