#include <cstdlib>
#include <iostream>
#include <string>
#include <string.h>
#include <sstream>

using namespace std;

int main(int argc, char *argv[]){
    ostringstream chaine;
    for(int i=0;i<1000;i++){ 
        if(i<10) {chaine<<"000"<<i; cout<<chaine.str()<<endl;}
        if(i<100 && i>10){chaine<<"00"<<i; cout<<chaine.str()<<endl;}
        if(i<1000 && i>100){chaine<<"0"<<i; cout<<chaine.str()<<endl;}
        
        chaine.clear();
    }
    
    
    system("PAUSE");
    return EXIT_SUCCESS;
}