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

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

int main(void)
{
	while (1) {
		long n = 1;
		long i;
		long v=0,v1=0,r;
		int a = 0;
		int len;

		char s[1024] = "";
		char *ss = s;
		
		gets(s);
		if (strlen(s)==0) break;
		len=strlen(s);
		for (i=0;i<len;i++) {
		    if (s[i]==' ') {
			n++;
			s[i]=0;
		    }
		}
	
		v1=0;
		while (n--) {
		    r=cvt(ss);
/*		    printf("%s\n", ss);
*/		    switch (r) {
			case -1: printf("-"); break;
			case 100: v1 *= r; break;
			case 1000: v += r * v1; v1=0; break;
			case 1000000: v += r * v1; v1=0; break;
			default: v1 += r; break;
		    }
/*		    printf("v1 %d v %d\n",v1,v);
*/		    ss+=strlen(ss)+1;
		}
		v += v1;

		printf("%d\n", v);
	}
	return 0;
}