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

int main(void){
    char *scisla[] = {"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"};
    int icisla[] = {-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 cislo[20];
    char radek[1000];
    int pocet=32;
    int celkem[2];
    int i,j,k,l,xxx,part;
    int neg;
    int index1,index2;
    int ll;
    int cel;
    
 while(1){
 index1 = 0;
 gets(radek);
 
    celkem[0]=0;
    celkem[1]=0;
    celkem[2]=0;
    xxx=0;
    neg=1;
 
 if (radek[0] == 0) return 0;
 do{    
  index2=0;
    
    if (index1) index1++;
    while(isalpha(radek[index1])) {
     cislo[index2] = radek[index1];
     index1++;
     index2++;
     }
     /*printf(" indexy %d  %d",index1,index2);*/
     cislo[index2]=0;
     
  for(i=0;i<32;i++){
  
   if (!strcmp(scisla[i],cislo)) {part=icisla[i];break;}
    
  }
    /*printf("part  %d \n", part);*/
    
  if (part == -1) neg = -1; else
  if (part == 1000000 || part == 1000){ celkem[xxx] *= part;xxx++;}
  else if (part == 100) celkem[xxx] *=part; 
  else celkem[xxx] += part;
  /* printf("xxx  %d\n  %d",xxx,celkem[xxx]);*/
   
  }while (radek[index1] != 0);
  
  cel = celkem[0]+celkem[1]+celkem[2];
  cel *= neg;  
  printf("%d\n",cel);
  }
  
  return 0;
}