Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 4°C. We apply continuously 133°C heat to the field 5x3
What is the temperature (rounded to whole numbers) in the field 5x3 after 135 iterations according to the Gauss-Seidel iteration

Field in the beginning

4444444444
4444444444
4444444444
4444444444
4444444444
4444444444
4444444444
4444444444
4444444444
4444444444

Field after 4 iterations (rounded after 4th iteration)

1111376431
12251526211373
1251642785027136
13827782118639187
1382250875732177
1361428403322136
13591520181494
124681010863
1223566532
0112223221

Temperature in field 5x3 after 135 iterations: