Replacing Array For A Position Number

The list at the left is the data (A1:F1900) in the middle the table (is like a parking lot - place number), and in the right is the swap results, I mean if I put the table in front of the list, and want to know what place number 2 was before, I can see was in the position 7 in the table, next #6 was in 8 and so on, see the example:

Code:

2
6
25
31
37
50

1
2
3
4
5
6

[Code]...

when I go to swap the second line I mean 2-6-11-18-etc. the table has to move one cell down like this.

Code:
2
6
25
31
37
50

[Code]...

and for the next number, the same thing, the tabe go down one place and according from the new position swap the numbers.

The position talbe is on H:M from 1 to 500, I don't write H1:M500 because remember this table go down one row every time, and the results in O:T; well at least I don't find another way to explain.