Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 13°C. We apply continuously 75°C heat to the field 0x5
What is the temperature (rounded to whole numbers) in the field 5x0 after 121 iterations according to the Gauss-Seidel iteration

Field in the beginning

13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313
13131313131313131313

Field after 4 iterations (rounded after 4th iteration)

2344444432
3677888753
691010101010973
141615131212111074
362921171413121184
1054727191514131184
383123181514121184
161917151312111074
71011101098753
3555554431

Temperature in field 5x0 after 121 iterations: