Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 3°C. We apply continuously 189°C heat to the field 1x6
What is the temperature (rounded to whole numbers) in the field 9x8 after 39 iterations according to the Gauss-Seidel iteration

Field in the beginning

3333333333
3333333333
3333333333
3333333333
3333333333
3333333333
3333333333
3333333333
3333333333
3333333333

Field after 4 iterations (rounded after 4th iteration)

0111111110
1112222211
1233322221
4997543221
173529181164321
49106683619106421
952921185325137431
56115764323127421
274840271695321
11181713853210

Temperature in field 9x8 after 39 iterations: