Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 40°C. We apply continuously 153°C heat to the field 4x2
What is the temperature (rounded to whole numbers) in the field 8x8 after 106 iterations according to the Gauss-Seidel iteration

Field in the beginning

40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040
40404040404040404040

Field after 4 iterations (rounded after 4th iteration)

69152739332417126
91835671097750342110
12265311426912671452814
142850851299667473115
14274261777057443116
14263747555449412915
14243340444542372714
12212833363736312211
916212426272622168
5811121314131184

Temperature in field 8x8 after 106 iterations: