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 66°C heat to the field 5x7
What is the temperature (rounded to whole numbers) in the field 1x5 after 32 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)

6912131314131295
916202223242321168
12202528303030272011
13222832343534312312
13233034373938342513
14243036434946392814
13233140557459443015
122129426913674462914
9162332476650352210
58121723282418115

Temperature in field 1x5 after 32 iterations: