Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 1°C. We apply continuously 189°C heat to the field 1x4
What is the temperature (rounded to whole numbers) in the field 9x0 after 91 iterations according to the Gauss-Seidel iteration

Field in the beginning

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111

Field after 4 iterations (rounded after 4th iteration)

0111110000
3885321100
17342716942110
4810466351784210
942911175123115311
55114754121115311
274840261595311
122120151064211
59108642110
2343321100

Temperature in field 9x0 after 91 iterations: