4 digit pin combination

[mswils411]

Ok I am trying to generate every possible combination of 4 digits like 0000-9999

After trying many generators, I can only get a list starting at 1000. but there are possibilities before 1000 like 0011. Any idea on how I can do this?

[db]

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	for(int i=0;i<10000;i++)
		cout<<setfill('0')<<setw(4)<<i<<endl;
	return 0;
}

[mswils411]

Thanks , I appreciate that. There's a web site that you can check your gift card balance on, Some times the card numbers you get ask for a pin, Only on the website though, If you call the 800 number even if there is a pin on it It does not require you to enter it. Well I hit a pretty large amount on one card. But it ask for a pin. The thing is no matter how many times you enter the wrong pin on the site it does not lock you out or kick you off. or even block that card number, I'm wondering since that is the case can it be brute forced so to speak.

[groundzero_1]

So you're essentially stealing gift cards?