Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 26°C. We apply continuously 134°C heat to the field 2x2
What is the temperature (rounded to whole numbers) in the field 1x6 after 104 iterations according to the Gauss-Seidel iteration

Field in the beginning

26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626
26262626262626262626

Field after 4 iterations (rounded after 4th iteration)

7183025181411963
1849886139262016116
308822510255362620147
25611027451372923168
1839555142342924179
1426363734312824179
1120262929282622168
916202324242219147
611141617171614105
3678998753

Temperature in field 1x6 after 104 iterations: