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 115°C heat to the field 5x9
What is the temperature (rounded to whole numbers) in the field 4x5 after 96 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
711141516171615116
814182021212119147
915202223242421168
916212325262523179
1017212426272624189
916212427303025189
815192433423728199
611162646755031188
361123581636026125

Temperature in field 4x5 after 96 iterations: