Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 5°C. We apply continuously 80°C heat to the field 9x0
What is the temperature (rounded to whole numbers) in the field 4x0 after 47 iterations according to the Gauss-Seidel iteration

Field in the beginning

5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555

Field after 4 iterations (rounded after 4th iteration)

1112224113296
1223335112132
123444581212
2344445676
2344455553
2344555542
2344455432
2334444431
1233333321
1111222110

Temperature in field 4x0 after 47 iterations: