Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 10°C. We apply continuously 81°C heat to the field 0x2
What is the temperature (rounded to whole numbers) in the field 4x7 after 120 iterations according to the Gauss-Seidel iteration

Field in the beginning

10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010
10101010101010101010

Field after 4 iterations (rounded after 4th iteration)

111186544321
36271711876542
1114825151198753
3931211512109863
16191614121110863
8121212111010963
58101010109863
4688998753
3466666542
1233333321

Temperature in field 4x7 after 120 iterations: