Grab numeric values from column B to Column C

Hello everyone
I have two columns : In A I have sequence 1 - 2 - 3 - 4 - 5
In Column B I have some numeric values ( 5 values) but in disorder)

The required is a formula in column C to order the numbers in the same order of sequence ..
I have put expected output
Thanks advanced for help

with a helpcolum to count the value and after that index match.

See the green cells in the attached file.

In C1, copied down (array entered):

=IF(A1="","",INDEX($B$1:$B$100,SMALL(IF(ISBLANK($B$1:$B$100),"",ROW($B$1:$B$100)),COUNT($A$1:A1)-ROW($B$1:$B$100)+1)))

Thank you very much for this great solution
In fact the columns A & B are helper columns so if possible I need a formula without the need of helper column
Regards

Mr. Glenn
I am so sorry I didn't see your post till I replied .. Your formula is great and exactly as i need
Thank you very much

I am so sorry for disturbing you Mr. Glenn
I tried to apply the formula to my file .. but it doesn't give me exact results
Column A is a helper and it contains a formula which results "" in some cells
I tried editing the formula at this part

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Tried to use Countif($A$1:A1,">0") but didn't return correct results too

I have figured it out at last
I replaced this part

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with

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