#include <iostream>
using namespace std;

#define For(i,a,b) for (int i = a; i < b; i++)

int main()
{
	freopen("DATA4.txt", "r", stdin);
	freopen("OUT4.txt", "w", stdout);

	For (T, 0, 5)
	{
		int val[128];
		val['I'] = 1;
		val['V'] = 5;
		val['X'] = 10;
		val['L'] = 50;
		val['C'] = 100;
		val['D'] = 500;
		val['M'] = 1000;
		string s; cin >> s;
		int sum = 0;
		For (i, 0, s.size())
			sum += val[s[i]];
			
		For (i, 0, s.size()-1)
			if (val[s[i]] < val[s[i+1]])
				sum -= 2*val[s[i]];
		cout << sum<< endl;
	}
	
	//system("pause")
	return 0;
}