Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 11°C. We apply continuously 142°C heat to the field 7x0
What is the temperature (rounded to whole numbers) in the field 3x6 after 59 iterations according to the Gauss-Seidel iteration

Field in the beginning

11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111

Field after 4 iterations (rounded after 4th iteration)

2334822641936521
3457112348814821
3578111930403015
4689111520231910
468911131515137
4781010111212105
46891011111084
3678999863
2466777642
1233444321

Temperature in field 3x6 after 59 iterations: