Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 8°C. We apply continuously 117°C heat to the field 8x2
What is the temperature (rounded to whole numbers) in the field 6x1 after 55 iterations according to the Gauss-Seidel iteration

Field in the beginning

8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888
8888888888

Field after 4 iterations (rounded after 4th iteration)

1223335132113
23445716386735
2456611277118464
346671123477539
356781017273421
35678912161811
3567781011106
2456777864
2345555542
1222333221

Temperature in field 6x1 after 55 iterations: