Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 29°C. We apply continuously 195°C heat to the field 5x0
What is the temperature (rounded to whole numbers) in the field 7x2 after 72 iterations according to the Gauss-Seidel iteration

Field in the beginning

29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929
29292929292929292929

Field after 4 iterations (rounded after 4th iteration)

481434922709640187
71221397312079462511
8152334526756412612
9162330394542342412
10172328333635302211
10172326293131272111
10172225272828251910
915192224252422168
711151718181816116
36899109863

Temperature in field 7x2 after 72 iterations: