Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 25°C. We apply continuously 109°C heat to the field 7x5
What is the temperature (rounded to whole numbers) in the field 7x7 after 34 iterations according to the Gauss-Seidel iteration

Field in the beginning

25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525

Field after 4 iterations (rounded after 4th iteration)

3678888863
610121415151513106
712161819192021179
8141820212431392915
8151921243354815325
81519222743841918333
8151922273861885827
8131719233040473619
6101314172024262111
3578910121295

Temperature in field 7x7 after 34 iterations: