#include "bits/stdc++.h"
#define MOD 1000000007
#define INF 11234567890
#define in std::cin
#define out std::cout
#define rep(i,N) for(LL i=0;i<N;++i)
typedef long long int LL;

int N;
std::string R[112];
std::pair<std::string, int>list[13];

int main()
{
	in >> N;
	rep(i, N) { in >> R[i]; }

	list[0].first = "IV", list[0].second = 4;
	list[1].first = "IX", list[1].second = 9;
	list[2].first = "XL", list[2].second = 40;
	list[3].first = "XC", list[3].second = 90;
	list[4].first = "CD", list[4].second = 400;
	list[5].first = "CM", list[5].second = 900;
	list[6].first = "I", list[6].second = 1;
	list[7].first = "V", list[7].second = 5;
	list[8].first = "X", list[8].second = 10;
	list[9].first = "L", list[9].second = 50;
	list[10].first = "C", list[10].second = 100;
	list[11].first = "D", list[11].second = 500;
	list[12].first = "M", list[12].second = 1000;
	
	return 0;
}