How to remove 2 Zeros in the beginning of a string

Question

This is my code -

var creditAccount = response.Accounts.Where(x => x.Value.Identifier.ProductCode == "MMM").Select(x=>x.Value.Identifier).ToList();

// For Example :- creditAccount - 0000002134665300468820,0000001528830814061271

foreach (var item in creditAccount)

{

permanentIdList.Add(item.PermanentIdentifier);

}

Here i Need to remove two zeros in the creditAccount before pushing into the list. Please help me How do I remove that.

I am expecting - For Example :- creditAccount - 00002134665300468820, 00001528830814061271