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 110°C heat to the field 5x0
What is the temperature (rounded to whole numbers) in the field 5x0 after 123 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)

471224561575926136
712192949765233209
9152129394842322111
10172228333735302111
10182327303332282111
10182327293030272011
10172226282928251910
916202324252522168
712151718191816126
468910109863

Temperature in field 5x0 after 123 iterations: