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 186°C heat to the field 3x0
What is the temperature (rounded to whole numbers) in the field 3x4 after 71 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)

11329026095422416105
15377312081523626189
15325370624939312211
14284149494539332412
14253541424138332513
13243236393937332513
13232934363736322412
12202629313231282010
915192223242320157
4810111213121074

Temperature in field 3x4 after 71 iterations: