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 88°C heat to the field 8x7
What is the temperature (rounded to whole numbers) in the field 6x9 after 41 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
611141617171717159
6111416171820242716
6111416171926416031
61013141619316314552
471011121524405931
24566812182313

Temperature in field 6x9 after 41 iterations: