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 153°C heat to the field 0x0
What is the temperature (rounded to whole numbers) in the field 4x0 after 90 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)

18666291611109863
6649332319171513105
2933292522211917137
1623252524232219148
1119222424242320158
1017212324242321168
915192223232320158
813171920212018137
61013141516151395
3578888752

Temperature in field 4x0 after 90 iterations: