Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 24°C. We apply continuously 171°C heat to the field 6x8
What is the temperature (rounded to whole numbers) in the field 6x9 after 134 iterations according to the Gauss-Seidel iteration

Field in the beginning

24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424

Field after 4 iterations (rounded after 4th iteration)

3678888753
61012131414141395
712151718181816126
813171920212018147
814182021222220158
8141821222529261910
8141820263852432914
71316213670115774319
591321451092781155121
35713275898613113

Temperature in field 6x9 after 134 iterations: