Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 25°C. We apply continuously 166°C heat to the field 2x6
What is the temperature (rounded to whole numbers) in the field 0x7 after 36 iterations according to the Gauss-Seidel iteration

Field in the beginning

25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525

Field after 4 iterations (rounded after 4th iteration)

3678888863
610121415151513105
712161819191917137
816242625242219148
1230484436302622168
24631128053382923179
3610727812567433124178
29711208656392922157
1839575038282216115
8172423191511963

Temperature in field 0x7 after 36 iterations: