Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 36°C. We apply continuously 82°C heat to the field 6x5
What is the temperature (rounded to whole numbers) in the field 4x4 after 35 iterations according to the Gauss-Seidel iteration

Field in the beginning

36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636

Field after 4 iterations (rounded after 4th iteration)

5810111212121184
814182021212119148
10182325272930272010
11202528323945392714
12212731405778583718
122128344880161814420
12212733446284623919
11192429364551443015
8141822252932282010
47101113151513105

Temperature in field 4x4 after 35 iterations: