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 150°C heat to the field 9x2
What is the temperature (rounded to whole numbers) in the field 5x0 after 102 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)

4689999121821
6111315161618284968
81317192021264388207
9151921232428395974
9162023242528333732
9162023252627282618
9162023242525242012
814182022222220169
611141516171715116
3678999753

Temperature in field 5x0 after 102 iterations: