Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 20°C. We apply continuously 74°C heat to the field 0x2
What is the temperature (rounded to whole numbers) in the field 0x2 after 116 iterations according to the Gauss-Seidel iteration

Field in the beginning

20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020
20202020202020202020

Field after 4 iterations (rounded after 4th iteration)

1212109877652
362921161413121184
10549302218171614105
3934272320191815126
1823232220201916126
1117202020201917137
814171819191816126
711141617171614115
5811121213121184
2456776542

Temperature in field 0x2 after 116 iterations: