Find Three Largest Numbers From A Variable Starting Index Match Point

My data is set out in columns, where alternate columns provide day numbers for given years (we can call these type 1 columns), with adjacent columns containing values which correspond to those type 1 column day numbers (we can call these type 2 columns). There are about a hundred columns in total (50 of each type). I would like to get excel to return the three largest numbers within each type 2 column, but I want to exclude data within the type 2 column above the point which is adjacent to a specific (varying) day number in the type 1 column. The location of this point varies for all the type 1 columns, according to a third row of numbers (the look up start point), which are currently listed below the dataset in every type 1 column. So, for the type 1 column "year 1", I would want Excel to ignore the values 0 and 1, which are listed next to day numbers 78 and 79, and begin looking for the three largest values down the column starting from the value which is adjacent to 81 (which is a 2). In type 1 column "year 2", excel would start looking for the largest values from the cell adjacent to 78, so it would ignore the 18 at the top of the column,and would return 2 and 12. And so on.

Year1
Value
Year2
Value
Year3

[Code]...

look up startpoint

81
78
62
83