#include <stdio.h>
#include <stdlib.h>

int
main (void)
{
  for (;;)
    {
      unsigned num_d, num_c, num_xc, num_l, num_x, got_x, num_ix, num_v, num_i, got_i;
      unsigned long long val;
      char buf[10240], *p;

      if (gets (buf) == NULL)
	break;
      if (*buf == 0)
	break;
      num_d = num_c = num_xc = num_l = num_x = num_ix = num_v = num_i = got_x = got_i = 0;
      val = 0;
      for (p = buf; *p != 0; p++)
	{
	  switch (*p)
	    {
	    case 'm':
	      val = val + 1000 - (val % 1000);
	      num_d = num_c = num_xc = num_l = num_x = num_ix = num_v = num_i = got_x = got_i = 0;
	      break;

	    case 'd':
	      if (num_d < 1)
		{
		  val = val + 500 - (val % 500);
		  num_c = num_xc = num_l = num_x = num_ix = num_v = num_i = got_x = got_i = 0;
		  num_d++;
		}
	      break;

	    case 'c':
	      if (num_c < 3)
		{
		  val = val + 100 - (val % 100);
		  num_l = num_x = num_ix = num_v = num_i = got_x = got_i = 0;
		  num_c++;
		}
	      else if (num_xc == 0 && got_x != 0)
		{
		  val = val + 90 - (val % 100);
		  num_l = 1;
		  num_x = 3;
		  num_ix = num_v = num_i = got_i = 0;
		  num_xc = 1;
		}
	      break;

	    case 'l':
	      if (num_l < 1)
		{
		  val = val + 50 - (val % 50);
		  num_x = num_ix = num_v = num_i = got_i = 0;
		  /* xc > lc */
		  num_l++;
		}
	      break;

	    case 'x':
	      got_x = 1;
	      if (num_x < 3)
		{
		  val = val + 10 - (val % 10);
		  num_v = num_i = got_i = 0;
		  num_x++;
		}
	      else if (num_ix == 0 && got_i != 0)
		{
		  val = val + 9 - (val % 10);
		  num_v = 1;
		  num_i = 3;
		  num_ix = 1;
		}
	      break;

	    case 'v':
	      if (num_v < 1)
		{
		  val = val + 5 - (val % 5);
		  num_i = 0;
		  num_v++;
		}
	      break;

	    case 'i':
	      got_i = 1;
	      if (num_i < 3)
		{
		  val++;
		  num_i++;
		}
	      break;

	    default:
	      break;
	    }
	}
      printf ("%llu\n", val);
    }
  return EXIT_SUCCESS;
}