Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 28°C. We apply continuously 198°C heat to the field 8x5
What is the temperature (rounded to whole numbers) in the field 9x5 after 46 iterations according to the Gauss-Seidel iteration

Field in the beginning

28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828
28282828282828282828

Field after 4 iterations (rounded after 4th iteration)

47899109863
711141516171615127
8141820212121222214
9152022232428405131
91621232529448012666
10172124263461134322114
91621242633539113571
8151921232839556439
6111416172025313220
36789101214138

Temperature in field 9x5 after 46 iterations: