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 62°C heat to the field 2x5
What is the temperature (rounded to whole numbers) in the field 7x5 after 120 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)

4789101010973
712151617171715116
815212323232220158
1122323229272622179
1535564637322824189
205211964433530251910
1838604939332925189
1326363532292622168
916222322211916116
481011111110863

Temperature in field 7x5 after 120 iterations: