Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 7°C. We apply continuously 72°C heat to the field 0x7
What is the temperature (rounded to whole numbers) in the field 0x7 after 97 iterations according to the Gauss-Seidel iteration

Field in the beginning

7777777777
7777777777
7777777777
7777777777
7777777777
7777777777
7777777777
7777777777
7777777777
7777777777

Field after 4 iterations (rounded after 4th iteration)

1222222221
2334444431
2345555542
3456666542
5677776642
1212119877642
33251611987642
98422113976542
33251610765431
111186433211

Temperature in field 0x7 after 97 iterations: