class RomanToNumber
{
public void main(String n)
{
String a[]={" ","I","II","III","IV","V","VI","VII","VIII","IX"};
String b[]={" ","X","XX","XXX","XL","L","LX","LXX","LXXX","XC","C"};
int u[]={0,1,2,3,4,5,6,7,8,9};
int v[]={0,10,20,30,40,50,60,70,80,90,100};
for(int i=0;i<=10;i++)
{
for(int j=0;j<10;j++)
{
if(n.equals(b[i] + a[j]))
System.out.print(v[i] + u[j]);
}
}
}
}