Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 19°C. We apply continuously 187°C heat to the field 1x5
What is the temperature (rounded to whole numbers) in the field 4x7 after 36 iterations according to the Gauss-Seidel iteration

Field in the beginning

19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919
19191919191919191919

Field after 4 iterations (rounded after 4th iteration)

3456666642
4810111111111074
817191817161513105
2243393024201815116
54114794933242017126
992991296640282218137
61123875637272217126
3257524030231915115
162729252017141184
71113121097642

Temperature in field 4x7 after 36 iterations: