import java.io.*;
import java.util.*;
/**
Chase Keskinyan
12/16/19
Mr.Goldman
Period 9 APCSA
 */
public class RomanNumeral
{
  static PrintStream richard;
  public static int getDigitValue(char ch)
  {
      if(ch == 'I')
      {
          return 1;
      }

      else if(ch == 'V')
      {
          return 5;
      }

      else if(ch == 'X')
      {
          return 10;
      }

      else if(ch == 'L')
      {
          return 50;
      }

      else if(ch == 'C')
      {
          return 100;
      }

      else if(ch == 'D')
      {
          return 500;
      }

      else if(ch == 'M')
      {
          return 1000;
      }

      else
      {
          return 0;
      }
  }

  public static void main(String[] args)throws Exception
  {
        try
        {
            Scanner chase = new Scanner(new FileInputStream("RomanNumeralFile.txt"));
            while(chase.hasNext())
            {
                String tmp = chase.nextLine();
                if(tmp.length()== 1)
                {
                    System.out.println(tmp.charAt(0).getDigitValue());
                }
                else
                {
                    for(int j = 1; j < tmp.length(); j++)
                    {
                        if(tmp.charAt(j).getDigitValue < tmp.charAt(j+1).getDigitValue)
                        {

                        }
                    }
                }
            }
        }

        catch(IOException e)
        {
            System.out.println("Invalid File Name");
        }
  }
}