Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 22°C. We apply continuously 197°C heat to the field 4x1
What is the temperature (rounded to whole numbers) in the field 9x5 after 79 iterations according to the Gauss-Seidel iteration

Field in the beginning

22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222
22222222222222222222

Field after 4 iterations (rounded after 4th iteration)

382357105653519104
617461203161316233188
71841841379458352110
8173253716145322010
815253543413527199
814212630312824179
713182224252421158
712151820202017136
5911131415141294
3567787642

Temperature in field 9x5 after 79 iterations: