Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 22°C. We apply continuously 127°C heat to the field 9x4
What is the temperature (rounded to whole numbers) in the field 3x5 after 120 iterations according to the Gauss-Seidel iteration

Field in the beginning

22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222

Field after 4 iterations (rounded after 4th iteration)

3567777753
59111213131311118
6111415161716182222
7121517181921284560
71316182021253976177
7131719202125345163
7131619202123273127
7111517181819201913
59111313141414127
3467777753

Temperature in field 3x5 after 120 iterations: