Remove 3rd character from the end of a random-length string

Hi,

I hope someone can share there scripting fu on my problem,

I would like to delete the 3rd character from a random length of string starting from the end

Example

Output

Hope you can help me..

Thanks in advance..

perl -pe 's/.(.{3})$/\1/' file

Same script in sed:

sed 's/.\(...\)$/\1' file

Thanks much it helps..