Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 27°C. We apply continuously 89°C heat to the field 0x6
What is the temperature (rounded to whole numbers) in the field 3x7 after 118 iterations according to the Gauss-Seidel iteration

Field in the beginning

27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727
27272727272727272727

Field after 4 iterations (rounded after 4th iteration)

4689999863
611131516161614116
814171920212018147
1118212223232320158
2026262626252522169
4742343028272523179
12863413228272522179
4742342926242320147
2024232119181715105
811111110109753

Temperature in field 3x7 after 118 iterations: