Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 38°C. We apply continuously 82°C heat to the field 4x3
What is the temperature (rounded to whole numbers) in the field 5x7 after 120 iterations according to the Gauss-Seidel iteration

Field in the beginning

38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838

Field after 4 iterations (rounded after 4th iteration)

5911131616151295
915212937342923178
11203251745843322211
122441761608454392613
13254061856852402714
13253647575346382714
13233239444441352513
12202732353634302111
915202325262521158
4810121313131184

Temperature in field 5x7 after 120 iterations: