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 86°C heat to the field 7x0
What is the temperature (rounded to whole numbers) in the field 8x0 after 83 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)

2334615401184013
345791631513114
3578101522272010
468910131617147
468910121313106
47891011111195
46891010111074
3678999863
2466777642
1233443321

Temperature in field 8x0 after 83 iterations: