Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 193°C heat to the field 2x1
What is the temperature (rounded to whole numbers) in the field 8x9 after 57 iterations according to the Gauss-Seidel iteration

Field in the beginning

27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727

Field after 4 iterations (rounded after 4th iteration)

1955103653621141073
3811631013064372518126
32791359560402922158
2249706249383024179
1632434339342925189
1223313332312824189
1019242728282623179
915202224242320157
611141617181715105
3678999753

Temperature in field 8x9 after 57 iterations: