Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 104°C heat to the field 1x4
What is the temperature (rounded to whole numbers) in the field 5x7 after 124 iterations according to the Gauss-Seidel iteration

Field in the beginning

23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323

Field after 4 iterations (rounded after 4th iteration)

3678888753
71315151514141295
1630292521191816126
3470523728242118137
59173814733262320148
3876584232272420158
2239393329252320147
1323262524222017126
81417171716151394
4789988652

Temperature in field 5x7 after 124 iterations: