Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 26°C. We apply continuously 185°C heat to the field 6x3
What is the temperature (rounded to whole numbers) in the field 2x0 after 82 iterations according to the Gauss-Seidel iteration

Field in the beginning

26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626

Field after 4 iterations (rounded after 4th iteration)

46889121615105
6101314193348402512
81316213774124824621
8141928551263111356427
91520294989139955525
9152027395874624120
9152024314046413015
8141821252931282111
610131517192018137
357891010963

Temperature in field 2x0 after 82 iterations: