import java.util.Scanner;

/**
 *
 * @author 261141
 */
public class IdealGasLaw1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here

      Scanner s = new Scanner(System.in);
      Scanner in = new Scanner(System.in);

      String answer;

      System.out.println("What do you want to solve for?");
      answer = s.nextLine();


      System.out.print("Pressure? (in Torr) ");
      double pressure = in.nextDouble();

      System.out.print("Volume? (in liters) ");
      double volume = in.nextDouble();

      System.out.print("Temp ? (in Kelvin) ");
      double temp = in.nextDouble();

      System.out.print("Moles? ");
      double moles = in.nextDouble();

      double gas = 62;

      double PresAns = (pressure)*(volume)/gas * (temp+273);
      double MoleAns = (pressure)*(moles);

      if (answer.equals("Moles" )) {
          System.out.println("Moles =" +MoleAns +" moles");
      }
      else
          System.out.println("Pressure =: "+PresAns +" Torr");
    }
}