Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 15°C. We apply continuously 122°C heat to the field 6x2
What is the temperature (rounded to whole numbers) in the field 8x8 after 118 iterations according to the Gauss-Seidel iteration

Field in the beginning

15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515

Field after 4 iterations (rounded after 4th iteration)

24458162520126
46710204477502712
4710153380202864017
581116305689603516
591216233646392613
591215192428261910
59111316182018147
58101213141514105
3689101010974
2345555532

Temperature in field 8x8 after 118 iterations: