Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 39°C. We apply continuously 86°C heat to the field 6x1
What is the temperature (rounded to whole numbers) in the field 5x9 after 41 iterations according to the Gauss-Seidel iteration

Field in the beginning

39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939

Field after 4 iterations (rounded after 4th iteration)

59111420355637219
91520253870155723716
11192531415982603718
12222833404956483417
13232934384345413016
13233034374040372815
13232933363737342513
12202630323332292111
915202224252421158
5810121313121184

Temperature in field 5x9 after 41 iterations: