Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 30°C. We apply continuously 114°C heat to the field 4x6
What is the temperature (rounded to whole numbers) in the field 8x5 after 52 iterations according to the Gauss-Seidel iteration

Field in the beginning

30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030
30303030303030303030

Field after 4 iterations (rounded after 4th iteration)

47910101010974
712151717181716126
915192123232320158
1017212630302824189
10172536474336292011
10203459926848352312
102243892059958382412
10203663957149342210
715243849433424168
4812182220171284

Temperature in field 8x5 after 52 iterations: