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 123°C heat to the field 1x4
What is the temperature (rounded to whole numbers) in the field 2x4 after 62 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)

479910109863
816191918171715116
1936353026242219147
4083624434292622168
70206965640322824189
4590705039332925189
2647474035312824189
1628313028272521158
1017202120201815115
48101010109863

Temperature in field 2x4 after 62 iterations: