Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 8°C. We apply continuously 169°C heat to the field 7x7
What is the temperature (rounded to whole numbers) in the field 7x2 after 58 iterations according to the Gauss-Seidel iteration

Field in the beginning

8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888

Field after 4 iterations (rounded after 4th iteration)

1223333221
2344555432
2456666542
3466777753
3567771013116
356771124372915
35671024571026329
2457133710226910841
23451129631086831
122361529413115

Temperature in field 7x2 after 58 iterations: