Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 12°C. We apply continuously 111°C heat to the field 1x8
What is the temperature (rounded to whole numbers) in the field 4x1 after 61 iterations according to the Gauss-Seidel iteration

Field in the beginning

12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212
12121212121212121212

Field after 4 iterations (rounded after 4th iteration)

2334444431
3567777652
3688999863
4789101010974
479101111111074
61213131212111084
142724191513121074
32674629191411973
56173723419139752
285938211275431

Temperature in field 4x1 after 61 iterations: