Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 37°C. We apply continuously 185°C heat to the field 4x5
What is the temperature (rounded to whole numbers) in the field 8x7 after 140 iterations according to the Gauss-Seidel iteration

Field in the beginning

37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737

Field after 4 iterations (rounded after 4th iteration)

5911121213121184
915182022232220158
11182329353532272010
12203047645846362513
122445851379967463015
13296113632315084533316
1328549614910874503216
12244061807156412713
917263745433728199
59131721201814105

Temperature in field 8x7 after 140 iterations: