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 160°C heat to the field 9x2
What is the temperature (rounded to whole numbers) in the field 1x8 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)

581011121212152123
8141820212123335575
101823252728335197223
11202528303236486782
12212730323336414437
12212731333435363221
12212730323334322615
11192427293030272111
814182122232219147
479111212111074

Temperature in field 1x8 after 79 iterations: