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 96°C heat to the field 8x4
What is the temperature (rounded to whole numbers) in the field 2x6 after 76 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)

2334444332
3456676785
35788810172214
468991118365931
46891014276315454
4789111424426434
4689101318263119
367891013161610
2466789995
1233444442

Temperature in field 2x6 after 76 iterations: