ass

#include <iostream>
using namespace std;
int main(void)
{
    system("TITLE Metric System Convertor");
    double dkilo = 0.0; 
    double dhecto = 0.0;
    double ddeka = 0.0;
    double dmlg = 0.0;
    double ddeci = 0.0;
    double dcenti = 0.0;
    double dmilli = 0.0;
    double dunit1 = 0.0;
    double dunit2 = 0.0;
    double dmicro = 0.0;
    double dunit3 = 0.0;
    double dunit4 = 0.0;
    double dnano = 0.0;
    double dval = 0.0;
    char cPre;
    
    cout << "System arranged as: " << endl << "Kilo Hecto Deka Meter/Liter/Gram Deci Centi Milli Unit1 Unit2 Micro Unit3 Unit4 Nano" << endl << endl;
    cout << "Please enter the current prefix(kilo, hecto, etc. no caps.): ";
    cin >> cPre;
    cin.ignore();
    cout << endl << "Please enter the current value: ";
    cin >> dval;

    switch (cPre)
    {
                 default:
                         cout << "Please enter a valid prefix";
                         break;
                 case 'kilo':
                      cout << "Kilo: " << dval << endl;
                      break;
                 case 'test':
                      cout << "1.1.11.1." << endl;
                      break;
                      }
    system("pause");
    return 0;
}