Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 24°C. We apply continuously 69°C heat to the field 6x7
What is the temperature (rounded to whole numbers) in the field 4x4 after 100 iterations according to the Gauss-Seidel iteration

Field in the beginning

24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424
24242424242424242424

Field after 4 iterations (rounded after 4th iteration)

3678888753
61012131414141395
712151718181816126
813171920212018147
814182021232422169
8141821242935302110
8141821284261442713
71316213259127603114
591216243957402311
357913192319126

Temperature in field 4x4 after 100 iterations: