Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 2°C. We apply continuously 72°C heat to the field 9x5
What is the temperature (rounded to whole numbers) in the field 7x8 after 134 iterations according to the Gauss-Seidel iteration

Field in the beginning

2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222

Field after 4 iterations (rounded after 4th iteration)

0011111100
0111111111
1111121123
11122223710
111222382031
1122225143797
1112224112232
111222371112
0111112455
0011111222

Temperature in field 7x8 after 134 iterations: