Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 5°C. We apply continuously 116°C heat to the field 5x3
What is the temperature (rounded to whole numbers) in the field 3x0 after 147 iterations according to the Gauss-Seidel iteration

Field in the beginning

5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555

Field after 4 iterations (rounded after 4th iteration)

1112366431
12251424191273
1251538694524125
23825701867735177
2382045775129167
2371426363020126
23591419171394
234681010863
1234566542
1112233221

Temperature in field 3x0 after 147 iterations: