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 79°C heat to the field 8x1
What is the temperature (rounded to whole numbers) in the field 4x3 after 113 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)

12333410234020
244569194812342
346671018335127
356781014212515
3578891114149
357889101095
3578899974
3567788753
2455566542
1223333221

Temperature in field 4x3 after 113 iterations: