Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 30°C. We apply continuously 183°C heat to the field 7x2
What is the temperature (rounded to whole numbers) in the field 0x6 after 129 iterations according to the Gauss-Seidel iteration

Field in the beginning

30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030

Field after 4 iterations (rounded after 4th iteration)

47910101427403015
71215172035711187434
9151922305612530612750
101721253251901368942
10172226314260735629
10182326303643473821
10172225283134342715
9162023252627262011
712151718191918137
4689101010963

Temperature in field 0x6 after 129 iterations: