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

char *getradek(void)
{
    char *text = malloc(sizeof(char));    
    int i=1;
    int c;

    while((c=getchar())!='\n'){
	if(c==EOF){
	    if(i>1){
		return text;
	    }else{	
		return NULL;
	    }		
	}else{
	    text = realloc(text, sizeof(char) * (i+1));
	    text[i-1]=c;
	    text[i]='\0';
	    i++;
	}
    }
    return text;	    
}

char *getslovo(int por, char *radek)
{
    int i = 0, j = 0, slovoNow = 1;
    char *vysledek = NULL;
    int n;
    vysledek = (char *) malloc(sizeof(char) * 20);    
    while(radek[i] != '\0'){
	n=radek[i];
	if(n==' '){ 
	    if(slovoNow == por){
		vysledek[j]='\0';
		return vysledek;
	    }else{
		slovoNow++;
		j=0;
	    }
	}else{
	    vysledek[j]=radek[i];
	    j++;
	}        	    
	i++;
    }
    if(slovoNow == por){
	vysledek[j]='\0';
        return vysledek;	
    }else{
	return	NULL;
    }
}


	    
int main(void)
{
    long cislo;
    char *text = NULL;
    char *vysl = NULL;
    int neg;
    int akt_slovo;
    int done = 0;
    int is_mil;
    int is_th;
    int part_mil;
    int part_th;
    int bylojednou = 0;
    
    while(done == 0)
    {
	neg = 0;
	akt_slovo = 1;
	is_mil = 0;
	is_th = 0;
	part_mil=0;
	part_th=0;
	
	text = getradek();
	if(text == NULL)
	    return 0;
	if(bylojednou == 0)
	    bylojednou = 1;
	else
	    printf("\n");

    cislo = 0;

    while((vysl = getslovo(akt_slovo, text)) != NULL)
    {
	if(strcmp(vysl, "negative") == 0)
	    neg = 1;
	if(strcmp(vysl, "one") == 0)
	    cislo++;
	if(strcmp(vysl, "two") == 0)
	    cislo += 2;
	if(strcmp(vysl, "three") == 0)
	    cislo += 3;
	if(strcmp(vysl, "four") == 0)
	    cislo += 4;
	if(strcmp(vysl, "five") == 0)
	    cislo += 5;
	if(strcmp(vysl, "six") == 0)
	    cislo += 6;
	if(strcmp(vysl, "seven") == 0)
	    cislo += 7;
	if(strcmp(vysl, "eight") == 0)
	    cislo += 8;
	if(strcmp(vysl, "nine") == 0)
	    cislo += 9;
	if(strcmp(vysl, "ten") == 0)
	    cislo += 10;
	if(strcmp(vysl, "eleven") == 0)
	    cislo += 11;
	if(strcmp(vysl, "twelve") == 0)
	    cislo += 12;
	if(strcmp(vysl, "thirteen") == 0)
	    cislo += 13;
	if(strcmp(vysl, "fourteen") == 0)
	    cislo += 14;
	if(strcmp(vysl, "fifteen") == 0)
	    cislo += 15;
	if(strcmp(vysl, "sixteen") == 0)
	    cislo += 16;
	if(strcmp(vysl, "seventeen") == 0)
	    cislo += 17;
	if(strcmp(vysl, "eighteen") == 0)
	    cislo += 18;
	if(strcmp(vysl, "nineteen") == 0)
	    cislo += 19;
	if(strcmp(vysl, "twenty") == 0)
	    cislo += 20;
	if(strcmp(vysl, "thirty") == 0)
	    cislo += 30;
	if(strcmp(vysl, "forty") == 0)
	    cislo += 40;
	if(strcmp(vysl, "fifty") == 0)
	    cislo += 50;
	if(strcmp(vysl, "sixty") == 0)
	    cislo += 60;
	if(strcmp(vysl, "seventy") == 0)
	    cislo += 70;
	if(strcmp(vysl, "eighty") == 0)
	    cislo += 80;
	if(strcmp(vysl, "ninety") == 0)
	    cislo += 90;
	if(strcmp(vysl, "hundred") == 0)
	    cislo*=100;
	if(strcmp(vysl, "thousand") == 0)
	{
	    is_th = 1;
	    part_th=cislo;
	    cislo=0;
	}
	if(strcmp(vysl, "million") == 0){
	    is_mil = 1;
	    part_mil=cislo;
	    cislo=0;
	}    
	akt_slovo++;
	
	free(vysl);
    }
    cislo+=1000000*part_mil+1000*part_th;
    if(neg == 1)
	cislo *= -1;

    printf("%ld", cislo);
    
    free(text);
    }
    
    return 0;
}