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 166°C heat to the field 8x2
What is the temperature (rounded to whole numbers) in the field 7x7 after 32 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)

1222226172918
23344720529349
2345612359725990
2456712296310355
245671020354628
24567913202214
2456681012128
2455667874
2344455542
1122222221

Temperature in field 7x7 after 32 iterations: