#include <iostream>
using namespace std ;
int main (void)
{
  int i =0, j = 0;
  double u = 0.0 , v = 0.0 ;
  i++ ;
  u++ ;
  cout << "i is: " << i << endl ;
  cout << "j is: " << j << endl ;
  cout << "u is: " << u << endl ;
  cout << "v is: " << v << endl ;
  
  return 0;
}