Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 32°C. We apply continuously 90°C heat to the field 4x0
What is the temperature (rounded to whole numbers) in the field 9x3 after 89 iterations according to the Gauss-Seidel iteration

Field in the beginning

32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232
32323232323232323232

Field after 4 iterations (rounded after 4th iteration)

510214813151251594
816264466473323158
1018273745403427199
10192632363633282010
11192530333332282111
11192529313231282111
11192428293030272010
1017222426272623179
713161820202017126
47810101110963

Temperature in field 9x3 after 89 iterations: