Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 75°C heat to the field 9x2
What is the temperature (rounded to whole numbers) in the field 3x1 after 118 iterations according to the Gauss-Seidel iteration

Field in the beginning

23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323

Field after 4 iterations (rounded after 4th iteration)

357788891112
591113131415192836
71114161718202849106
7131618192022273540
8131719202122242419
8141720212222221912
813171921212120169
712151719191917137
5912131414141295
3567787642

Temperature in field 3x1 after 118 iterations: