Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 36°C. We apply continuously 196°C heat to the field 8x9
What is the temperature (rounded to whole numbers) in the field 3x4 after 66 iterations according to the Gauss-Seidel iteration

Field in the beginning

36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636
36363636363636363636

Field after 4 iterations (rounded after 4th iteration)

5810111212121184
814182021212119147
1018232527272724189
11202528303130272111
12212730323332292212
12212731333433302313
12212730323333322917
11192427293034445130
81418212226396910954
479111218369226680

Temperature in field 3x4 after 66 iterations: