#include <stdio.h>

char cisla[20][20] = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
			"ten", "eleven", "twelve", "thirteen", "fourteen",  "fifteen", "sixteen", "seventeen",
			 "eighteen", "nineteen" };

char desiatky[8][20] = { "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" }; 


char sto[] = "hundred", tisic[] = "thousand", milion[] = "million";

int pole[20];

int main()
{
	char vstup[500], *retazec, co[20];
	int i, j, cislo[3], c, pom;

	for (i = 0; i < 500; i++) vstup[i] = 0;
	gets(vstup);

	while (vstup[0] != 0)
	{
		j = 0;

		retazec = vstup;
		
		sscanf(retazec, "%s", co);

		while (retazec[0] != 0)
		{
			if (!strcmp("negative", co))
			{
				printf("-");
				retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}

			i = 0;
			while (i < 20 && strcmp(cisla[i], co)) i++;
			if (i < 20)
			{
				pole[j++] = i;
		retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}

			i = 0;
			while (i < 8 && strcmp(desiatky[i], co)) i++;
			if (i < 8)
			{
				pole[j++] = (i + 2) * 10;
		retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}

			if (!strcmp(sto, co))
			{
				pole[j++] = 100;
		retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}

			if (!strcmp(tisic, co))
			{
				pole[j++] = 1000;
		retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}

			if (!strcmp(milion, co))
			{
				pole[j++] = 1000000;
		retazec += strlen(co);
				if (retazec[0] == ' ')
					retazec++;
				sscanf(retazec, "%s", co);
				continue;
			}
		}

		cislo[0] = cislo[1] = cislo[2] = pom = 0;
		c = 0;
		int treba;

		for (i = 0; i < j; i++)
		{
			if (pole[i] < 100)
			{
				pom += pole[i];
				treba = 1;
			}
			else
			{
				if (pole[i] == 1000)
				{
					cislo[1] = pom * pole[i];
					pom = 0;
				}
				if (pole[i] == 1000000)
				{
					cislo[2] = pom * pole[i];
					pom = 0;
				}
				else
					pom *= pole[i];

				treba = 0;
			}
		}

		printf("%d\n", cislo[2] + cislo[1] + pom);

		for (i = 0; i < 500; i++) vstup[i] = 0;
		gets(vstup);
	}

	return 0;
}