#include <stdio.h>

int main(void)
{
	char s[10020];
	while(1)
	{
	int ptr = 0;
	int nacteno = 0;
		
		while(1)
		{
			char c;
			if(scanf("%c",&c)!=1)return 0;
			nacteno++;
			/*printf("%c",c);*/
			if(c=='\n')break;
			{if(c=='i'||c=='I')s[ptr++] = 'I';}
			{if(c=='v'||c=='V')s[ptr++] = 'V';}
			{if(c=='x'||c=='X')s[ptr++] = 'X';}
			{if(c=='l'||c=='L')s[ptr++] = 'L';}
			{if(c=='c'||c=='C')s[ptr++] = 'C';}
			{if(c=='d'||c=='D')s[ptr++] = 'D';}
			{if(c=='m'||c=='M')s[ptr++] = 'M';}
		}
		int i;
		int M=0,D=0,C=0,L=0,X=0,V=0,I=0,lastpos=-1;
		int points = 0;
		for(i=0;i<ptr;i++)
		{
			if(s[i] == 'M')
			{M++;lastpos = i;points+=1000;}
		}	
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'D')
			{D++;lastpos = i;points+=500;break;}
		}	
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'C')
			{C++;lastpos = i;points+=100;if(C>2)break;}
		}
		int xc =0;
		int ix =0;
		if(C==3)
		{
			int ok;
			int j = lastpos+1;
			if((ok)&&(j<ptr))
			while((s[j]!='X')&&(j<=ptr-1))j++;
			if((s[j]=='X')&&(j<ptr))ok=1;else ok=0;
			if((ok)&&(j<ptr))
			{
				while((s[j]!='C')&&(j<=ptr-1))j++;
				if((s[j]=='C')&&(j<ptr))ok=1;else ok=0;
				if(ok)
				{
				lastpos = i;
				points+=90;
				xc = 1;
				}
			}
		}
		if(!xc)
	{
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'L')
			{L++;lastpos = i;points+=50;break;}
		}	
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'X')
			{X++;lastpos = i;points+=10;if(X>2)break;}
		}	
	}	
		if((X==3)||xc)
		{
			int ok = 1;
			int j = lastpos+1;
			if((ok)&&(j<ptr))
			while((s[j]!='I')&&(j<=ptr-1))j++;
			if((s[j]=='I')&&(j<ptr))ok=1;else ok=0;
			if((ok)&&(j<ptr))
			{
				while((s[j]!='X')&&(j<=ptr-1))j++;
				if((s[j]=='X')&&(j<ptr))ok=1;else ok=0;
				if(ok)
				{
				lastpos = i;
				points+=9;
				ix = 1;
				}
			}
		}

		if(!ix)
	{
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'V')
			{V++;lastpos = i;points+=5;break;}
		}	
		for(i=lastpos+1;i<ptr;i++)
		{
			if(s[i] == 'I')
			{I++;lastpos = i;points+=1;if(I>2)break;}
		}
	}
		if(nacteno>1)
		printf("%d\n",points);
	}
	return 0;
}