regarding deletion of personal number

hi experts,

In HR hiring (PA40) i have entered 100 employees details .now i want to delete last 25 employees details that is from 76 to 100.if i delete and starting hiring procedure again what no will be assigned to the 76 employee .

it will be 76 or 101. i have set my personal number genation type to auto.

hope my question is clear.

thanks

mani