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 74°C heat to the field 5x3
What is the temperature (rounded to whole numbers) in the field 6x1 after 61 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)

0011243211
011381412742
11282343281573
11415431174821104
124122848321894
11381522181273
112581110752
1123465432
0112233321
0011111110

Temperature in field 6x1 after 61 iterations: