Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 24°C. We apply continuously 175°C heat to the field 6x4
What is the temperature (rounded to whole numbers) in the field 0x7 after 57 iterations according to the Gauss-Seidel iteration

Field in the beginning

24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424

Field after 4 iterations (rounded after 4th iteration)

3678889863
610121314172119147
7121517223549412613
81317223772119804520
8141927531202951286126
81419274684131905224
8141925365469573819
7131621273540362613
59121518222422168
3568911111074

Temperature in field 0x7 after 57 iterations: