Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 38°C. We apply continuously 100°C heat to the field 1x3
What is the temperature (rounded to whole numbers) in the field 2x0 after 109 iterations according to the Gauss-Seidel iteration

Field in the beginning

38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838
38383838383838383838

Field after 4 iterations (rounded after 4th iteration)

71315141414131294
1733332926242320158
36745945373330261910
621758857443834302212
42826753454036322412
27485046424037322413
19333940393836322312
14243033333332282010
1017212425252420157
5811121313121074

Temperature in field 2x0 after 109 iterations: