Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 9°C. We apply continuously 88°C heat to the field 7x1
What is the temperature (rounded to whole numbers) in the field 6x8 after 122 iterations according to the Gauss-Seidel iteration

Field in the beginning

9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999

Field after 4 iterations (rounded after 4th iteration)

123341125462712
2445921541405521
3467101937603818
3567101523302312
35789121618148
35789101212105
35788910974
3567788763
2455666542
1223333321

Temperature in field 6x8 after 122 iterations: