Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 2°C. We apply continuously 75°C heat to the field 7x6
What is the temperature (rounded to whole numbers) in the field 7x2 after 134 iterations according to the Gauss-Seidel iteration

Field in the beginning

2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222
2222222222

Field after 4 iterations (rounded after 4th iteration)

0011111100
0111111110
1111121211
1112223542
111224915126
11223924442712
1112515441194718
111241228483014
0111371521168
0011236874

Temperature in field 7x2 after 134 iterations: