Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 15°C. We apply continuously 155°C heat to the field 4x4
What is the temperature (rounded to whole numbers) in the field 3x4 after 125 iterations according to the Gauss-Seidel iteration

Field in the beginning

15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515
15151515151515151515

Field after 4 iterations (rounded after 4th iteration)

2445666542
467111515131073
47132539332417115
5112557100674125147
615391002561105531178
6153367110764729178
613244155473524157
510172531292418126
4711141717151284
2357887642

Temperature in field 3x4 after 125 iterations: