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 62°C heat to the field 0x4
What is the temperature (rounded to whole numbers) in the field 0x0 after 59 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
813151617171615116
1621222222222119147
3533292726252421168
9249353028272623179
3736323028282623189
1926282827272623179
1219222424242320158
813161718181715115
4689999853

Temperature in field 0x0 after 59 iterations: