Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 1°C. We apply continuously 79°C heat to the field 2x5
What is the temperature (rounded to whole numbers) in the field 4x8 after 51 iterations according to the Gauss-Seidel iteration

Field in the beginning

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111

Field after 4 iterations (rounded after 4th iteration)

0000000000
0011111100
0244321110
281512742110
82445291584211
14451245022105311
1028503318105311
61422181274211
37109743210
1344321110

Temperature in field 4x8 after 51 iterations: