Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 2°C. We apply continuously 171°C heat to the field 1x3
What is the temperature (rounded to whole numbers) in the field 3x4 after 124 iterations according to the Gauss-Seidel iteration

Field in the beginning

2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222

Field after 4 iterations (rounded after 4th iteration)

3775321110
15312515843210
449561321684311
852641074722116321
50103693820116321
244437251595321
112019151074321
59108653211
2454432211
1222211110

Temperature in field 3x4 after 124 iterations: