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

int main()
{
  double tuition = 10000;   // Year 1
  int year = 0;
  while (tuition < 20000)
  {
    tuition = tuition * 1.07;
    year++;
  }

  cout << "Tuition will be doubled in " << year << " years" << endl;
  cout << setprecision(2) << fixed << showpoint << 
       "Tuition will be $" << tuition << " in " 
       << year << " years" << endl;

  return 0;
}