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 185°C heat to the field 5x0
What is the temperature (rounded to whole numbers) in the field 5x4 after 81 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)

361231862548936166
51017346611171412210
6121829456049352210
7131824323836292010
713172226292824189
713172023242421168
713171921222219148
712151718191916126
5911131414141294
3467777642

Temperature in field 5x4 after 81 iterations: