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 87°C heat to the field 0x0
What is the temperature (rounded to whole numbers) in the field 2x5 after 31 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)

10537169655432
372718131098753
16181613121110973
91313131212111084
61012121312121184
5911121213121184
5810111212121184
47910111111973
3578888752
2334444321

Temperature in field 2x5 after 31 iterations: