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 104°C heat to the field 8x8
What is the temperature (rounded to whole numbers) in the field 7x4 after 55 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
814182021222219158
8141821222222221911
8141820222224293320
7131618192229476936
5912141519336916758
356781120365829

Temperature in field 7x4 after 55 iterations: