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 61°C heat to the field 0x7
What is the temperature (rounded to whole numbers) in the field 5x3 after 52 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
3567888753
4689101010973
479101111111074
61011121212121184
121514131313121184
302519161413121184
853923161312111074
302417131098753
101197654431

Temperature in field 5x3 after 52 iterations: