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 152°C heat to the field 0x9
What is the temperature (rounded to whole numbers) in the field 4x4 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)

1111111110
1222222221
1233333321
1233333321
1233444321
2344444331
6765444321
1918128544321
59382011643221
18160229432110

Temperature in field 4x4 after 135 iterations: