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 158°C heat to the field 9x0
What is the temperature (rounded to whole numbers) in the field 7x2 after 42 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)

23344482263189
34566711224364
35788912172425
468991011131512
468910101111107
47891010111085
4689101010974
3678999863
2466777642
1233443321

Temperature in field 7x2 after 42 iterations: