Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 37°C. We apply continuously 123°C heat to the field 0x2
What is the temperature (rounded to whole numbers) in the field 2x3 after 70 iterations according to the Gauss-Seidel iteration

Field in the beginning

37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737
37373737373737373737

Field after 4 iterations (rounded after 4th iteration)

202118161413131184
6050372926242220158
175835239333129251910
66594841373432292111
32414139373634302312
20313537373635312312
15253134353534302312
12212629313130272010
915192223232320147
5810111212121074

Temperature in field 2x3 after 70 iterations: