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 103°C heat to the field 2x5
What is the temperature (rounded to whole numbers) in the field 3x3 after 117 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
711141617171615116
816222423232219147
1125383732282622169
1946796044342924189
277418288533931261910
2252856547373125189
1633464337312722168
1019262725222016116
591213131210863

Temperature in field 3x3 after 117 iterations: