Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 24°C. We apply continuously 92°C heat to the field 7x3
What is the temperature (rounded to whole numbers) in the field 7x7 after 146 iterations according to the Gauss-Seidel iteration

Field in the beginning

24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424

Field after 4 iterations (rounded after 4th iteration)

36788891195
6101213141623292212
7121517192745684421
81317192437721627028
8141821253554775124
8141821243039453418
8141820232630302413
713161820222322179
59121415161615116
3567888753

Temperature in field 7x7 after 146 iterations: