#include <iostream>
#include <string>
#include <stdio.h>
#include <string.h>

struct word
{
  string text;
  long  num;
};

long find(string s)
{
  if (s == "negative")
    return -1;
  if ( s == "zero")
    return 0;
  if (s == "one")
    return 1;
  if (s == "two")
    return 2;
  if (s == "three")
    return 3;
  if (s == "four")
    return 4;
  if (s == "five")
    return 5;
  if (s == "six")
    return 6;
  if (s == "seven")
    return 7;
  if (s == "eight")
    return 8;
  if (s == "nine")
    return 9;
  if (s == "ten")
    return 10; 
  if (s == "eleven")
    return 11;
  if (s == "twelve")
    return 12;
  if (s == "thirteen")
    return 13;
  if (s == "fourteen")
    return 14;
  if (s == "fifteen")
    return 15;
  if (s == "sixteen")
    return 16;
  if (s == "seventeen")
    return 17;
  if (s == "eighteen")
    return 18;
  if (s == "nineteen")
    return 19;
  if (s == "twenty")
    return 20;
  if (s == "thirty")
    return 30;
  if(s == "forty")
    return 40;
  if (s == "fifty")
    return 50;
  if (s == "sixty")
    return 60;
  if (s == "seventy")
    return 70;
  if (s == "eighty")
    return 80;
  if (s == "ninety")
    return 90;
  if (s == "hundred")
    return 100;
  if (s == "thousand")
    return 1000;
  if (s == "million")
    return 1000000;
}    

int main ()
{
  char vstup[10000];
  string line;
  bool OK = true;
  long out;
  bool negative;
  long mil;
  long ths;
  long sub;
  
  
  while (OK)
  {
    out = 0;
    mil = 0;
    ths = 0;
    sub = 0;
    negative = false;
    
    cin.getline(vstup, 10000);
    line = vstup;
    if (line.size() == 0)
      OK = false;
    
    if (OK)
    {  
      string word = "";
      for (unsigned int i = 0; i < line.size(); i++)
      {
        if (line[i] != ' ')
          word += line[i];
        if ((line[i] == ' ') || (i == line.size()-1))
	{
          long cis = find(word);	    
	  if (cis < 0) 
	    negative = true;
	  else if (cis == 1000000)
	  { 
	    mil = sub;  
	    sub = 0;
	  }
	  else if (cis == 1000)
	  { 
	    ths = sub;  
	    sub = 0;
	  }
	  else if (cis == 100)
	  {   
	    sub *= 100;
	  }
	  else if (i == line.size()-1)
	    sub += cis;
	  else
	    sub += cis;
	  
	  word = "";
	}  
      }
      
      out = mil * 1000000 + ths * 1000 + sub;
      if (negative)
        out *= -1;
	
     cout << out << endl;
    }     
  }
  return 0;  
}