using System.Collections;
public void Roman(string str,Hashtable roman)
char[] ch=str.ToCharArray();
for(int i=0;i<ch.Length-1;i++)
int first=Convert.ToInt32(roman[ch[i].ToString()]);
int second=Convert.ToInt32(roman[ch[i+1].ToString()]);
public static void Main()
Hashtable roman=new Hashtable();
Program p = new Program();