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 156°C heat to the field 5x2
What is the temperature (rounded to whole numbers) in the field 6x8 after 79 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)

58101526383222147
81420356610975462712
10192953115271124663617
112131508512893613718
12223143607566513417
12222937465250423015
12212833384141362613
11192529323333292111
814182123242320157
4710111212121074

Temperature in field 6x8 after 79 iterations: