Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 5°C. We apply continuously 178°C heat to the field 3x1
What is the temperature (rounded to whole numbers) in the field 6x7 after 55 iterations according to the Gauss-Seidel iteration

Field in the beginning

5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555
5555555555

Field after 4 iterations (rounded after 4th iteration)

3164790532613631
83310027710948221152
827651137441221263
61735514228181163
4101925241813963
361114141210752
2478987642
2356665532
1234444321
1112222211

Temperature in field 6x7 after 55 iterations: