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 70°C heat to the field 3x0
What is the temperature (rounded to whole numbers) in the field 3x6 after 103 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)

412339735158532
5132644291812963
51118252117131074
5914171715131184
4811131413121184
4810121212121184
479111112111074
4689101010963
3567787652
1234444321

Temperature in field 3x6 after 103 iterations: