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 124°C heat to the field 7x3
What is the temperature (rounded to whole numbers) in the field 1x5 after 43 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)

0011113553
0111141323189
111131338714420
1112724711957729
111261945795023
112251224352714
1112371216148
1112246874
0111223432
0011111211

Temperature in field 1x5 after 43 iterations: