Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 12°C. We apply continuously 180°C heat to the field 9x9
What is the temperature (rounded to whole numbers) in the field 9x1 after 108 iterations according to the Gauss-Seidel iteration

Field in the beginning

12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212

Field after 4 iterations (rounded after 4th iteration)

2334444431
3567777652
3688999863
4789101010974
479101111111074
479101111111085
4791011111110109
4689101010132124
35677810214471
12344592471215

Temperature in field 9x1 after 108 iterations: