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 123°C heat to the field 7x9
What is the temperature (rounded to whole numbers) in the field 4x2 after 122 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)

5911121313131295
915192223232320158
11192527293029262010
12222731333333302212
13232933353635312412
13233033363736332513
13232933353637362815
12202630313543493618
9152022263555815022
5810121628641756121

Temperature in field 4x2 after 122 iterations: