[EpiData-list] problem in digits

Dear EpiData-list:

When I build a "qus" file as following:

cnid chinaidno ##################

But I have the trouble when I enter the data, it always appears wrong number at the last two digits.

For example: I want to enter the data as 221133445566778899.

But the last two digit”99” will change to some other digits such as 34 or other,randomly.

How can I solve the problem?

Your sincerely

MingQiu CHEN