Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 17°C. We apply continuously 199°C heat to the field 5x6
What is the temperature (rounded to whole numbers) in the field 2x5 after 48 iterations according to the Gauss-Seidel iteration

Field in the beginning

17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717
17171717171717171717

Field after 4 iterations (rounded after 4th iteration)

2455666542
4789101010973
5811121314141295
59121317232218126
610131934514330199
61016347412886502812
6112150127327139673415
51019418413894553013
471326466453362110
2471320262417115

Temperature in field 2x5 after 48 iterations: