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 111°C heat to the field 1x2
What is the temperature (rounded to whole numbers) in the field 5x7 after 136 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)

13242217131110863
3471513425201715116
63184854833262319147
4181624535292522168
2443433833292623179
1628323230282623179
1221252727272622179
916202323232320147
711151617171714105
3688999753

Temperature in field 5x7 after 136 iterations: