Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 31°C. We apply continuously 193°C heat to the field 8x5
What is the temperature (rounded to whole numbers) in the field 9x4 after 115 iterations according to the Gauss-Seidel iteration

Field in the beginning

31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131
31313131313131313131

Field after 4 iterations (rounded after 4th iteration)

47910101110974
712151718181816137
9151922232423242314
10172225262731425232
101823262831468112566
11182427293763134316112
101823262936559213471
9162123263041566539
7121618192227323220
468910111315148

Temperature in field 9x4 after 115 iterations: