Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 25°C. We apply continuously 98°C heat to the field 5x0
What is the temperature (rounded to whole numbers) in the field 6x7 after 72 iterations according to the Gauss-Seidel iteration

Field in the beginning

25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525
25252525252525252525

Field after 4 iterations (rounded after 4th iteration)

361020501395223115
610162543674628178
713182534423627189
814192328323025189
815192326272724179
815192224252522179
815192123242421168
813171920212118137
610131415161513105
3577888752

Temperature in field 6x7 after 72 iterations: