Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 9°C. We apply continuously 91°C heat to the field 4x6
What is the temperature (rounded to whole numbers) in the field 2x7 after 124 iterations according to the Gauss-Seidel iteration

Field in the beginning

9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999
9999999999

Field after 4 iterations (rounded after 4th iteration)

1233333321
2445555542
3466777652
3569111110863
359162421161174
3716345940251594
392359150653318105
3819396444271694
2612213025181273
1361012119642

Temperature in field 2x7 after 124 iterations: