Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 19°C. We apply continuously 106°C heat to the field 5x9
What is the temperature (rounded to whole numbers) in the field 2x3 after 99 iterations according to the Gauss-Seidel iteration

Field in the beginning

19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919

Field after 4 iterations (rounded after 4th iteration)

3456666642
489111111111074
59121314141413105
611131516161614116
611141617171715126
611141617181816126
611141619222118137
610131725332921147
47112039644225146
24819511485322104

Temperature in field 2x3 after 99 iterations: