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 110°C heat to the field 4x8
What is the temperature (rounded to whole numbers) in the field 3x3 after 80 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
611141617181716126
611141822222017137
611172737332620147
612234677543523147
5122971181783922126
3718386441231373

Temperature in field 3x3 after 80 iterations: