Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 23°C. We apply continuously 136°C heat to the field 2x9
What is the temperature (rounded to whole numbers) in the field 0x3 after 49 iterations according to the Gauss-Seidel iteration

Field in the beginning

23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323
23232323232323232323

Field after 4 iterations (rounded after 4th iteration)

3577888753
5911131314131295
711141617171715126
713161819201917137
813171920212119147
814182021222119148
816222424232219147
1024383528242117126
164379533323171495
196218867291610752

Temperature in field 0x3 after 49 iterations: