Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 39°C. We apply continuously 64°C heat to the field 0x8
What is the temperature (rounded to whole numbers) in the field 0x1 after 31 iterations according to the Gauss-Seidel iteration

Field in the beginning

39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939
39393939393939393939

Field after 4 iterations (rounded after 4th iteration)

5911121313131295
915192223232320158
11192527293029262010
12222731333333302212
13232933353635312412
15253134363736322413
21303435363636322412
39393634343332282110
9348332826262421157
302419161414131174

Temperature in field 0x1 after 31 iterations: