#include <iostream>

int main()
{
  double income;
  double taxableIncome;
  double tax;
  
  cout << "Input your income: ";
  cin >> income;

  if (income <= 2000)
  {
    cout << "No tax" << endl;
  }
  else if (income <= 20000)
  {
    // compute tax
   taxableIncome = income - 2000;
   cout << "Your taxable income is: " << taxableIncome << endl;
   tax = taxableIncome * 0.04;
   cout << "Your tax is " << tax << endl;
  }

  return 0;
}