Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 12°C. We apply continuously 124°C heat to the field 4x0
What is the temperature (rounded to whole numbers) in the field 9x5 after 56 iterations according to the Gauss-Seidel iteration

Field in the beginning

12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212

Field after 4 iterations (rounded after 4th iteration)

27195617059241162
3920437346261594
49162838312215105
4813192322181495
4811141717151395
4710121414131284
479111212121184
4689101010973
3567787652
1234444321

Temperature in field 9x5 after 56 iterations: