Fizz Buzz

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

int main(int argc, char *argv[]) {
    ifstream stream(argv[1]);
    string line;
    int x, y, n;
    while(stream >> x >> y >> n){
          if((0<x<21) && (0<y<21) && (20<n<101))
          {
          for(int i=1; i<=n; i++){
               if((i%x || i%y) == 0){
                    cout <<"FB\t";
                    continue;
               }
               else if((i%x) == 0){
                    cout <<"F\t";
                    continue;
               }else if((i%y) == 0){
                    cout <<"B\t";
                    continue;
               }else
                    cout << i << "\t";
          }
          cout << "\n";
          }
    }
}