#include <stdio.h>
int aa[31]={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* bb[31]={"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 main()
{
	char s[1000];
	char z;
	int i,j,zn,a,b,c,jj;
	while (1)
	{
		s[0]=-1;
		zn=0;
		gets(s);
		if (s[0]==-1) break;
		i=0;
		z=' ';
		a=0;b=0;c=0;
		while (z)
		{
			j=i+1;
			while (s[j] && s[j]!=' ') j++;
			z=s[j];
			s[j]=0;
			jj=j;
			if (strcmp(s+i,"negative")==0) 
			{
				zn=1;
			} else
			{
				j=0;
				while (j<31 && strcmp(bb[j],s+i)) j++;
				if (j>=31) printf("BUG %s",s+i);
				j=aa[j];
				if (j==1000000) 
				{
					c=a*1000000;
					a=0;
				} else
				if (j==1000)
				{
					b=a*1000;
					a=0;
				} else 
				if (j==100)
				{
					a=a*100;
				} else
				a+=j;
			}
			s[jj]=z;
			i=jj+1;
		}
		if (zn) printf("-");
		printf("%d\n",a+b+c);
	}
	return 0;
}