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 167°C heat to the field 3x5
What is the temperature (rounded to whole numbers) in the field 5x2 after 146 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
47810111110974
5813191917151295
513284338282116116
8266110874463020137
1240107276120613623147
12337111882523422147
923425850372719126
61423302824181394
36101313119752

Temperature in field 5x2 after 146 iterations: