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

char *w[] = {
  "negative","zero","one","two","three","four","five","six","seven",
  "eight","nine","ten","eleven","twelve","thirteen","fourteen",
  "fifteen","sixteen","seventeen","eighteen","nineteen","twenty",
  "thirty","forty","fifty","sixty","seventy","eighty","ninety",
  "hundred","thousand","million",NULL
};

int wval[] = {
  -1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,
  30,40,50,60,70,80,90,
  100,1000,1000000
};

char word[50];

int w0;

int tot;

int neg;
int val;

void gword(void) {
  int c;
  int l;
  
  l=0;
  while(1) {
    
    c=fgetc(stdin);
/*    printf("w char '%c'\n",c);*/
    if(c<'a' || c>'z') break;
    word[l++]=c;
  }
/*  printf("end word\n");*/
  word[l]=0;
  ungetc(c,stdin);
}



int aw(void) {
  int i;
  
  i=0;
  
  while(w[i]) {
    if(!strcmp(w[i],word)) {
      return wval[i];
    }
    i++;
  }
  return -2;
}

void pword(void) {
  int v;
  
  v=aw();
  switch(v) {
    case -1: neg=1; break;
    case -2: if(w0) exit(0); else { tline(); exit(0); } break;
    case 100: val=val*100; break;
    case 1000:
    case 1000000:
      tot += val*v; val=0;
      break;
    default:
      val+=v;
      break;
  }
}

void tline(void) {
  tot += val;
  
  if(neg) putchar('-');
  printf("%d\n",tot);
  
  tot=0; val=0; neg=0; w0=1;
}

int main(void) {
    int c;
    
    val = 0; tot=0; neg=0;w0=1;
    c=0;
    while(c!=EOF) {
      gword();pword();w0=0;
      c=fgetc(stdin);
/*      printf("c='%c'\n",c);*/
      if(c!=' ') tline();
    }
    return 0;
}