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 117°C heat to the field 8x1
What is the temperature (rounded to whole numbers) in the field 8x6 after 98 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)

47910101220396332
71215171822387918966
9151921232739608444
10172124262935434627
10172225272932343118
10182326272930292414
10172225272828262011
916202324252522179
712151718191816126
468910109863

Temperature in field 8x6 after 98 iterations: