UVa 11616

#include<bits/stdc++.h>
using namespace std;

typedef long long int           ll;
typedef unsigned long long int  ull;
typedef vector<int>             vi;
typedef vector<vi>              vvi;
typedef pair<int,int>           pii;
typedef vector< pii >           vpii;
typedef set<int>                sti;

#define pb                      push_back
#define pob                     pop_back
#define mp                      make_pair
#define ff                      first
#define ss                      second
#define loop1(i,n)              for(int i=1; i<=int(n); i++)
#define loop(i,y)               for(int i=0; i<int(y); i++)
#define rloop(i,y)              for(int i=int(y)-1; i>=0; i--)
#define read()                  freopen("input.txt", "r", stdin)
#define write()                 freopen("output.txt", "w", stdout)
#define cspf(i)                 printf("Case %d: ", i)
/// Constants
#define eps                     1e-9
#define PI                      acos(-1.0)  // 3.1415926535897932

int main()
{
    //read();
    char x[1000];
    while(scanf("%s",x)!=EOF){
        if(x[0]>='A' && x[0]<='Z'){
            int ln=strlen(x);
            int total=0;
            rloop(i,ln){
                if(x[i]=='V')
                    total+=5;
                else if(x[i]=='L')
                    total+=50;
                else if(x[i]=='D')
                    total+=500;
                else if(x[i]=='I'){
                    if(x[i+1]=='V' || x[i+1]=='X')
                        total-=1;
                    else
                        total+=1;
                }
                else if(x[i]=='X'){
                    if(x[i+1]=='L' || x[i+1]=='C')
                        total-=10;
                    else
                        total+=10;
                }
                else if(x[i]=='C'){
                    if(x[i+1]=='D' || x[i+1]=='M')
                        total-=100;
                    else
                        total+=100;
                }
                else if(x[i]=='M')
                    total+=1000;
            }
            printf("%d\n",total);
        }
        else if(x[0]>='0' && x[0]<='9'){
            int ln=strlen(x);
            char y[100];
            int z=ln;
            int j=0;
            loop(i,ln){
                z--;
                int k=x[i]-48;
                if(z>=3){
                    int w=z-3;
                    w=pow(10,w);
                    k*=w;
                    while(k--){
                        y[j]='M';
                        j++;
                    }
                }
                else if(z==2){
                    if(k<=3){
                        while(k--){
                            y[j]='C';
                            j++;
                        }
                    }
                    else if(k==4){
                        y[j]='C';
                        j++;
                        y[j]='D';
                        j++;
                    }
                    else if(k==5){
                        y[j]='D';
                        j++;
                    }
                    else if(k<=8){
                        y[j]='D';
                        j++;
                        k-=5;
                        while(k--){
                            y[j]='C';
                            j++;
                        }
                    }
                    else if(k==9){
                        y[j]='C';
                        j++;
                        y[j]='M';
                        j++;
                    }
                }
                else if(z==1){
                    if(k<=3){
                        while(k--){
                            y[j]='X';
                            j++;
                        }
                    }
                    else if(k==4){
                        y[j]='X';
                        j++;
                        y[j]='L';
                        j++;
                    }
                    else if(k==5){
                        y[j]='L';
                        j++;
                    }
                    else if(k<=8){
                        y[j]='L';
                        j++;
                        k-=5;
                        while(k--){
                            y[j]='X';
                            j++;
                        }
                    }
                    else if(k==9){
                        y[j]='X';
                        j++;
                        y[j]='C';
                        j++;
                    }
                }
                else if(z==0){
                    if(k<=3){
                        while(k--){
                            y[j]='I';
                            j++;
                        }
                    }
                    else if(k==4){
                        y[j]='I';
                        j++;
                        y[j]='V';
                        j++;
                    }
                    else if(k==5){
                        y[j]='V';
                        j++;
                    }
                    else if(k<=8){
                        y[j]='V';
                        j++;
                        k-=5;
                        while(k--){
                            y[j]='I';
                            j++;
                        }
                    }
                    else if(k==9){
                        y[j]='I';
                        j++;
                        y[j]='X';
                        j++;
                    }
                }
            }
            loop(s,j){
                printf("%c",y[s]);
            }
            printf("\n");
        }
    }
    return 0;
}