#include <bits/stdc++.h>
using namespace std;
int dl;
string s,j,d,t,c;
int main()
{
cin>>s;
dl=s.size();
dl--;
if (s[dl]=='1')c="I";
if (s[dl]=='2')c="II";
if (s[dl]=='3')c="III";
if (s[dl]=='4')c="IV";
if (s[dl]=='5')c="V";
if (s[dl]=='6')c="VI";
if (s[dl]=='7')c="VII";
if (s[dl]=='8')c="VIII";
if (s[dl]=='9')c="IX";
dl--;
if (s[dl]=='1')t="X";
if (s[dl]=='2')t="XX";
if (s[dl]=='3')t="XXX";
if (s[dl]=='4')t="XL";
if (s[dl]=='5')t="L";
if (s[dl]=='6')t="LX";
if (s[dl]=='7')t="LXX";
if (s[dl]=='8')t="LXXX";
if (s[dl]=='9')t="XC";
dl--;
if (s[dl]=='1')d="C";
if (s[dl]=='2')d="CC";
if (s[dl]=='3')d="CCC";
if (s[dl]=='4')d="CD";
if (s[dl]=='5')d="D";
if (s[dl]=='6')d="DC";
if (s[dl]=='7')d="DCC";
if (s[dl]=='8')d="DCCC";
if (s[dl]=='9')d="CM";
dl--;
if (s[dl]=='1')j="M";
if (s[dl]=='2')j="MM";
if (s[dl]=='3')j="MMM";
cout<<j<<d<<t<<c;
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}