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 68°C heat to the field 0x4
What is the temperature (rounded to whole numbers) in the field 1x1 after 45 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)

4678898863
812141515151513105
1620212020201917137
3734282523222119148
9951342825242320158
3936312826252421168
1925262525242321158
1218212222222118137
712151616161513105
3678888752

Temperature in field 1x1 after 45 iterations: