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 77°C heat to the field 6x7
What is the temperature (rounded to whole numbers) in the field 3x1 after 130 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)

4689999863
611131516161614116
813171920202018147
915192123232321168
9162023242627251810
9162023263339332312
9162024324768493014
81418243666142673515
6111418274464442612
3671014212621136

Temperature in field 3x1 after 130 iterations: