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 95°C heat to the field 1x3
What is the temperature (rounded to whole numbers) in the field 5x2 after 81 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)

51011111099863
1427262219171614105
3265493527232118137
55161774633272421158
3672574233292622168
2239403531282622179
1425292928272522168
1018222324232219147
712151717171614105
3689998753

Temperature in field 5x2 after 81 iterations: