Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 35°C. We apply continuously 149°C heat to the field 1x5
What is the temperature (rounded to whole numbers) in the field 7x6 after 83 iterations according to the Gauss-Seidel iteration

Field in the beginning

35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535
35353535353535353535

Field after 4 iterations (rounded after 4th iteration)

5810111212121184
814182021212018147
1223282828282624189
24464540363331272011
501027856443834292211
8625011870504136302312
551098561474035302211
31565447403531271910
1730333128262319147
81315151514121073

Temperature in field 7x6 after 83 iterations: