Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 16°C. We apply continuously 141°C heat to the field 2x1
What is the temperature (rounded to whole numbers) in the field 5x5 after 147 iterations according to the Gauss-Seidel iteration

Field in the beginning

16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616
16161616161616161616

Field after 4 iterations (rounded after 4th iteration)

1439754625149642
2783225934525161174
225697664127191495
1534494332241915105
1021282925211815116
815192120191715116
612151717171614105
5912141414141294
47910101110963
2345555432

Temperature in field 5x5 after 147 iterations: