Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 18°C. We apply continuously 182°C heat to the field 4x2
What is the temperature (rounded to whole numbers) in the field 9x2 after 134 iterations according to the Gauss-Seidel iteration

Field in the beginning

18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818
18181818181818181818

Field after 4 iterations (rounded after 4th iteration)

349223629191273
4102663112744324146
616441152981276234188
7173878129895533209
715284865564129189
713213138373124168
612172226262420147
610141719191816116
4710121313131184
2456676542

Temperature in field 9x2 after 134 iterations: